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Mitutoyo 87-100mm Holtest 368-143

Product Overview

The Mitutoyo Holtest 368-143 is a three-point internal micrometer covering the 87–100mm range — a workhorse bore measuring tool built for toolrooms and production floors where a two-point bore mic or telescoping gauge simply won’t cut it. Three-point contact self-centres in the bore automatically, eliminating the rocking errors that plague two-anvil designs and giving you a repeatable reading without chasing the axis manually. This is the newer-style Mitutoyo Holtest body — cleaner ergonomics, tighter tolerances from the factory, and a thimble action that reflects the fit-and-finish you expect from Japanese metrology at this level.

Three-point self-centring contact system — Unlike a two-anvil bore mic that requires the operator to find true diameter by rocking, the three-jaw contact system centralises itself in the bore. That means your reading is the actual diameter, not an approximation, which matters when you’re checking a bearing housing to H7 tolerance or verifying a cylinder liner after honing.
0.005mm graduation (5 micron resolution) — At this resolution you’re reading in single-digit microns across the thimble and vernier, which is enough precision to verify interference fits, check bores against a ground ring standard, and catch taper across a bore depth — all without needing a dedicated bench air gauge.
87–100mm measuring range — This range covers common engineering bores: 90mm and 95mm bearing housings, large hydraulic cylinder bores, gearbox and transmission cases, and larger lathe spindle bores. A single Holtest covers 13mm of range, so you’re not swapping anvils mid-job.
Setting ring required for zeroing — A Holtest is zeroed against a calibrated ring gauge, not against itself. The seller notes a setting ring is available separately — if you don’t already have one for this range, factor that into your purchase. Without a traceable ring, you’re relying on the calibration certificate supplied, which is a reasonable starting point but not a substitute for a ground reference at your bench temperature.
Ideal for — Checking bearing housing bores to H7/H6 fit, verifying honed cylinder bores, inspecting gearbox case bores, confirming large chuck register fits, and production inspection of 87–100mm bored components on a machining centre or horizontal borer.

Condition

Used (Like New / Well Cared For)

This Holtest presents in exceptional used condition — the seller describes it as like new and well cared for, and the visual evidence backs that up. The measuring faces and carbide contacts show no visible pitting, scoring, or wear that would affect measuring accuracy. The thimble rotates smoothly with no perceptible slop or drag, and the locking mechanism functions correctly. The newer-style Mitutoyo body is clean with no corrosion, deep scratches, or impact marks to the barrel or frame. Surface finish on the spindle and contact points appears consistent with a tool that has seen careful bench use rather than production floor abuse. The calibration certificate is included, providing a documented accuracy baseline — as with any used precision tool, we recommend verifying zero against a calibrated ring gauge at your working temperature before taking it into a critical tolerance job. A setting ring for this range is available separately from the seller if required.

Included:

1 x Mitutoyo Holtest Three-Point Internal Micrometer, 87–100mm, 0.005mm graduation, Model 368-143
Original Mitutoyo wooden storage case
Original papers / instruction manual
Calibration certificate
Original accessories (as supplied by Mitutoyo)

Not included: Setting ring gauge for 87–100mm range (available separately from the seller — enquire prior to purchase).

Brand Information

Mitutoyo Corporation, founded in Japan in 1934, is the largest dedicated precision measuring instrument manufacturer in the world and the benchmark against which all other metrology brands are measured — literally and figuratively. Their Holtest series sits at the top of the three-point internal micrometer market, in the same tier as Tesa and Mahr for bore measurement, and is the de facto standard in Australian toolrooms, automotive engine reconditioning shops, and aerospace subcontract facilities. Japanese manufacture, rigorous factory calibration, and a global service and calibration network make Mitutoyo instruments a sound long-term investment rather than a consumable.

Specifications

Feature	Specification
Brand	Mitutoyo
Model	368-143
Series	Holtest — Series 368 (Three-Point Internal Micrometer)
Type	Three-point self-centring internal micrometer
Measuring Range	87–100mm
Graduation / Resolution	0.005mm (5 micron)
Accuracy	±0.003mm (per Mitutoyo specification for this series — verify against supplied calibration certificate)
Contact Points	Three-point carbide-tipped anvils
Zeroing Method	Setting ring gauge required (not included)
Country of Origin	Japan
Condition	Used — Like New / Well Cared For
Included Items	Instrument, original wooden case, papers/manual, calibration certificate, original accessories
Not Included	Setting ring gauge (available separately from seller)

Keywords

Mitutoyo 368-143, Mitutoyo Holtest, Mitutoyo three-point internal micrometer, bore mic 87-100mm, Holtest 87mm 100mm, internal micrometer Australia, three point bore gauge, bore micrometer toolroom, Mitutoyo internal bore gauge, bore mic machining centre, precision bore measurement, used Mitutoyo micrometer Australia

Mitutoyo 50-63mm Holtest 368-140

Product Overview

The Mitutoyo Holtest 368-140 is a three-point internal micrometer covering the 50–63mm bore range — a workhorse instrument for anyone who needs repeatable, accurate bore measurement without the setup fuss of a two-point bore gauge and setting ring. Unlike traditional two-anvil bore mics, the Holtest’s three-contact design self-centres in the bore, eliminating the rocking technique and reducing operator-induced error. If you’re checking cylinder bores, housing fits, or bushing bores to tight tolerances, this is the instrument that earns its place on the bench.

Three-point self-centring contact system — The tri-anvil head automatically aligns to the bore centreline on insertion, removing the skilled rocking motion required with a two-anvil mic. That means consistent readings between operators and far less chance of measuring a chord instead of a true diameter — critical when you’re holding a fit to a few thou.
0.005mm graduation on a direct-reading thimble — The Holtest reads directly off the sleeve and thimble without conversion or interpolation.
Hardened and ground measuring contacts — Mitutoyo’s contacts are manufactured to tight geometric tolerances and hardened for wear resistance. The spherical contact points minimise cosine error when the tool isn’t perfectly perpendicular to the bore axis — an honest safety net in production environments.
Original Mitutoyo wooden case with accessories included — Ships with the original wooden storage box, spanner wrench, and documentation. Proper storage keeps the measuring faces protected and the instrument ready for calibration checks — not rattling around a drawer.
Ideal for — checking bored housing fits for bearings and bushings, verifying cylinder liner bores, inspecting hydraulic cylinder bores, checking spindle housing bores on lathes and mills, and qualifying bored parts on a machining centre where a two-point gauge would require a master setting ring every session.

Condition

Used (Like New / Minimal Use)

This Holtest presents exceptionally well for a used instrument. The thimble rotates smoothly through its full range with no perceptible backlash or roughness, and the tri-anvil head shows no visible wear, scoring, or corrosion on the contact points — the ground reference surfaces that actually determine your measurement. The barrel and sleeve graduations are clean and fully legible. The body finish retains the vast majority of its original surface with only the lightest handling marks consistent with an instrument that’s been handled carefully and stored properly rather than left on a swarf-covered bench. There is no visible damage, pitting, or impact marking reported by the seller, and nothing visible in inspection imagery that would suggest otherwise. As with any used precision instrument — regardless of cosmetic condition — we recommend verifying zero against a certified ring gauge or a known bore standard before putting it into production work. That’s simply good metrology practice, not a reflection of any functional concern with this specific tool.

Included

1 x Mitutoyo Holtest Three-Point Internal Micrometer, 50–63mm, 0.005mm graduation (Series 368-140)
1 x Original Mitutoyo wooden storage case
1 x Spanner wrench / setting tool (as supplied originally)
1 x Original documentation / papers

Not Included

Setting ring gauge (not supplied by Mitutoyo as standard — purchase separately if calibration traceability is required)

Brand Information

Mitutoyo Corporation, founded in Japan in 1934, is widely regarded as the global benchmark in dimensional metrology — sitting at the top tier of the market alongside Mahr, Tesa, and Starrett, and a clear step above general industrial brands in terms of manufacturing consistency and long-term accuracy retention. Their instruments are manufactured to Japanese Industrial Standards (JIS) and many models carry JCSS-traceable calibration options, making them acceptable for ISO 9001 and AS/NZS quality system environments. For Australian toolrooms, Mitutoyo is the name you calibrate your other gauges against.

Specifications

Feature	Specification
Brand	Mitutoyo
Model	368-140
Type	Holtest — Three-Point Internal Micrometer
Series	368
Measuring Range	50–63mm
Graduation / Resolution	0.005mm
Accuracy	±0.003mm (refer to Mitutoyo specification sheet for full accuracy statement)
Contact System	Three-point self-centring tri-anvil head
Contact Point Material	Hardened steel (carbide-tipped on select variants — verify on instrument)
Display Type	Analogue — sleeve and thimble (vernier)
Country of Origin	Japan
Condition	Used (Like New / Minimal Use)
Included Items	Instrument, original wooden case, spanner wrench, original documentation
Not Included	Setting ring gauge

Keywords

Mitutoyo 368-140, Mitutoyo Holtest, Mitutoyo internal micrometer, three-point bore micrometer 50-63mm, bore mic 50mm, holtest bore gauge, internal micrometer toolroom, precision bore measurement Australia, bore gauge machining centre, Mitutoyo Series 368, tri-anvil internal micrometer, used Mitutoyo bore mic

Mitutoyo 75-85mm Holtest 368-172

Product Overview

The Mitutoyo Holtest 368-172 is a three-point internal micrometer covering the 75–88mm range, built to Mitutoyo’s exacting toolroom standards. Unlike a two-point bore mic or a telescoping gauge that depends on feel and a follow-up measurement with an outside mic, the Holtest self-centres in the bore via three equally spaced contact points — giving you a direct, repeatable reading at the true diameter without the operator-induced error that plagues two-jaw alternatives. If you’re chasing H7 fits, checking cylinder bores after a rebore, or qualifying a bored housing before pressing in a bearing, this is the instrument that belongs on your bench.

Three-point self-centring contact system — direct reading, no transfer error. The three tungsten carbide-tipped anvils locate automatically at the bore’s true centre, eliminating the rocking and transfer steps required with a two-point mic. For toolroom work where you need repeatable readings to 0.005mm graduation, this design removes the biggest single source of human error.
0.005mm graduation with ±0.003mm accuracy — genuine toolroom resolution. At this specification, verified to Mitutoyo standard and backed by the included certificate of inspection, the 368-172 is capable of confirming interference and transition fits in bearing and bushing work — not just checking whether a bore is “close enough”.
75–88mm range in a single head — covers the most common bearing housing and cylinder bore sizes. This range catches 80mm, 85mm, and common metric bearing OD housings in one instrument without a range extension. The thimble reads directly off the graduated sleeve in the same familiar way as any outside mic, so there’s no relearning your reading technique.
Compatibility and accessories. The Holtest is used directly in the bore — no stand or indicator is required. A setting ring at the nominal size (75mm, 80mm, or 85mm) is the correct way to zero the instrument; setting rings are available separately. The included certificate lists the inspection points at 75mm, 80mm, and 88mm.
Ideal for: checking bored housings for bearing press fits, qualifying cylinder bores after line boring or honing, verifying hydraulic cylinder and sleeve bores, inspecting bushing housings on jig bores and horizontal borers, and confirming H7/h6 or H6/k5 fits in production or toolroom environments.

Condition

(Used — Like New / Excellent Mechanical Condition, Minimal Use)

This Holtest presents exceptionally well for a used instrument. The three carbide anvil faces are clean and free of nicks or scoring — the contact surfaces that matter most are in sound shape. The thimble rotates smoothly with no detectable play, the graduated sleeve is clearly legible with no wear to the markings, and the ratchet stop functions correctly, delivering consistent measuring force as intended. The chrome and satin surfaces show no meaningful wear patina — this tool has clearly had very little bench time. The seller describes it as well cared for, and the physical condition is consistent with that assessment. As with any used precision instrument, best practice is to verify zero against a calibrated setting ring at one or more points in the range before putting it to work — the included certificate of inspection documents factory performance, but confirming current zero is straightforward and takes two minutes. No functional deficiencies were identified.

Included:

1 x Mitutoyo Holtest Three-Point Internal Micrometer, Model 368-172, 75–88mm, 0.005mm graduation
Original Mitutoyo hard plastic carry case
Certificate of Inspection (issue no. 08J1001B, serial no. 844667)
Original instruction / reference papers
Original accessories as supplied by Mitutoyo

Not included:

Setting rings (available separately — strongly recommended for zeroing)

Brand Information

Mitutoyo Corporation, founded in Japan in 1934, is the global benchmark in hand-held precision measurement instrumentation — the name machinists reach for when the reading actually matters. Their products are manufactured in Japan to tolerances that consistently meet or exceed stated accuracy, and Mitutoyo’s quality system and traceability standards are recognised worldwide. In the metrology market, Mitutoyo sits alongside Mahr, Tesa, and Starrett at the top of the field — a step above the mid-tier Taiwanese and Chinese instruments and a direct competitor to other Japanese marques like Mitutoyo’s own RSK range and Fowler. Buying a used Mitutoyo instrument in good condition is, for most Australian toolrooms and home shops, a significantly better investment than a new budget-brand equivalent.

Specifications

Feature	Specification
Brand	Mitutoyo
Model	368-172 (HT-8SR per certificate)
Type	Holtest Three-Point Internal Micrometer
Series	368 — Holtest (current / modern production)
Measuring Range	75–88mm
Graduation / Resolution	0.005mm
Permissible Error (Accuracy)	±0.003mm (±3µm) per certificate of inspection
Uncertainty of Measurement	U = 2.5µm (k = 2) per certificate
Standard Temperature	20°C
Contact Points	Three-point, self-centring, tungsten carbide tipped
Inspection Standard	Mitutoyo standard
Serial Number	844667
Country of Origin	Japan
Condition	Used — Like New / Excellent, minimal use
Included Items	Instrument, original hard case, certificate of inspection, instruction papers, original accessories
Not Included	Setting rings (sold separately)

Keywords

Mitutoyo 368-172, Mitutoyo Holtest, Mitutoyo internal micrometer, Holtest 75-88mm, three-point bore micrometer, bore mic 75mm, internal micrometer toolroom, Holtest bore gauge, precision bore measurement, bearing housing inspection, cylinder bore micrometer, Mitutoyo Japan metrology

Korloy S16R STFCR-11 Boring Bar

Korloy S16R-STFCR-11 Boring Bar

A solid-shank internal turning bar from Korloy, the S16R-STFCR-11 is a right-hand boring bar designed for precision internal profiling and facing operations on lathes and turning centres. Built to accept TCMT/TCGT 11-series triangular inserts, this bar suits a wide range of internal diameter applications where clean geometry, rigidity, and consistent insert seating are non-negotiable. Whether you’re boring out a bearing housing, finishing a hydraulic cylinder bore, or undercutting a register, this is a bar you’ll reach for regularly.

16mm straight shank: A 16mm round shank gives a solid, low-vibration foundation in standard 16mm boring bar holders and quick-change toolposts — rigidity at this shank-to-overhang ratio means you’re fighting chatter less and getting finer surface finish without having to back off your feeds.
STFCR/L-11 toolholder geometry: The STFC pocket geometry positions a 60° triangular insert at a 0° lead angle with a negative rake seating, giving you three usable cutting edges per insert and predictable chip flow away from the bore wall — critical when you’re taking finish passes in blind bores where chip packing wrecks your surface.
Right-hand cutting (R suffix): Configured for conventional right-hand internal turning — cutting from depth toward the chuck face — which suits the majority of internal OD-reduction, bore finishing, and shoulder-facing operations on a standard lathe setup.
TCMT/TCGT 11-series insert compatibility: The 11-series seat accepts the widely available TCMT110204/110208 and TCGT110204 insert families across all major brands — Sandvik, Mitsubishi, Kyocera, Tungaloy, Korloy. That broad compatibility means you’re not locked into a single supplier for consumables.
Ideal for: Finishing and semi-finishing internal bores on CNC lathes and manual turning centres — specifically bearing housing bores, hydraulic cylinder finishing, spigot and register bores, stepped bore profiles, and light internal facing on aluminium, mild steel, alloy steel, and stainless.

Condition

New

This boring bar is new in its original Korloy packaging — unused, with no signs of wear, handling marks, or storage damage on the shank, pocket, or clamping surfaces. The insert seat, screw thread, and clamp geometry are untouched, so you’re getting a bar that’ll seat your first insert true and hold it there consistently from the first cut. The tool arrives ready to go straight into your holder and onto the machine — no cleaning, no inspection for wear, no concerns about previous abuse on someone else’s lathe.

Each bar in this listing comes with a pack of 10 inserts. The insert packs are sourced from Japanese manufacturers — brands include Tungaloy, Sandvik (Japanese-produced), and similar top-tier suppliers, and the pack included with your bar may vary. All insert packs are new and sealed. If insert grade, geometry, or brand specifics matter for your application — and they should — please enquire before purchasing and we’ll confirm exactly what’s included with your bar.

Included:

1 x Korloy S16R-STFCR-11 Boring Bar (16mm shank, right-hand, TCMT/TCGT 11-series)
1 x Original Korloy box/packaging
1 x New sealed pack of 10 Japanese-brand TCMT/TCGT 11-series inserts (brand may vary — Tungaloy, Sandvik, etc. — enquire for specifics)

Not included: Boring bar holder / quick-change toolpost block, insert clamping screw (if not present in pack), torx/hex key for insert clamping.

Brand Information

Korloy is a South Korean cutting tool manufacturer with a strong foothold in the Asia-Pacific industrial market, producing a comprehensive range of turning, milling, and drilling tooling that competes directly with Sandvik Coromant, Mitsubishi Materials, and Kyocera at a more accessible price point. Their carbide insert and toolholder geometry engineering is well-regarded in production and jobbing shop environments where reliability and consistent insert seating matter as much as brand prestige. Korloy tooling is a practical, no-nonsense choice for shops that want proven geometry and wide insert compatibility without paying a premium for European or Japanese branding.

Specifications

Feature	Specification
Brand	Korloy
Model	S16R-STFCR-11
Type	Solid shank internal boring bar / turning bar
Cutting Direction	Right-hand (R)
Shank Diameter	16mm
Insert Style Compatibility	TCMT / TCGT 11-series (60° triangular, negative rake seating)
Toolholder System	STFCR (screw clamp, 0° lead angle, right-hand)
Usable Cutting Edges per Insert	3 (triangular insert geometry)
Compatible Insert Brands	Korloy, Sandvik, Mitsubishi, Kyocera, Tungaloy (TCMT/TCGT 11xx series)
Country of Origin	South Korea (Korloy)
Condition	New (Factory Sealed)
Included Items	Boring bar in original box; 1 x pack of 10 Japanese-brand inserts (Tungaloy, Sandvik, or similar — enquire for specifics)
Not Included	Boring bar holder, clamping key, setting ring

Keywords

Korloy S16R-STFCR-11, Korloy boring bar, 16mm boring bar, STFCR boring bar, TCMT11 boring bar, internal turning bar lathe, boring bar with inserts, CNC lathe boring bar, Tungaloy TCMT inserts, boring bar Australia, toolroom boring bar, internal boring bar 16mm shank

Sandvik 16x200mm S16R-SCLCR06

Product Overview

The Sandvik Coromant S16R-SCLCR06 is a 16mm bore, 200mm long internal turning bar designed for machining small bores with CCMT 06 series inserts. Built to Sandvik’s CoroTurn platform, this solid steel shank boring bar gives you the rigidity and reach needed for internal profiling, facing, and finish turning in bores down to approximately 20mm diameter. If you’re running a manual lathe or CNC turning centre and need a reliable, insert-indexable boring bar that takes readily available CCMT inserts, this is a practical, no-fuss solution.

16mm round shank, 200mm OAL — the 16mm shank seats squarely in a standard boring bar holder or tool post, while the 200mm length gives you enough reach for moderately deep bores without the flex penalty you’d cop from a longer unsupported overhang. Keeping overhang to 4× diameter or less will give you the cleanest finish and longest insert life.
SCLCR insert pocket geometry — the SCLCR designation means the pocket accepts CCMT 06 series inserts at a 95° lead angle with right-hand cutting orientation. That geometry gives positive chip clearance and suits both roughing and finishing passes on steel, cast iron, and aluminium in a single tool setup.
Solid steel shank construction — unlike brazed carbide or carbide-shank bars, the steel body is forgiving to set up and easy to true in the holder. The knurled grip section along the shank makes it easier to rotate and lock the bar without it walking when you’re tightening the clamping screws.
Compatibility note — takes CCMT 06 02 or CCMT 06 04 inserts (CCMT060204 / CCMT060208 in ISO notation). The 14 included Tungaloy carbide inserts are CCMT 06 series and fit directly — you have cutting edges ready to go out of the box. Standard 16mm boring bar holders and turret tool blocks suit this shank without modification.
Ideal for — finish boring and internal profiling on manual engine lathes and CNC turning centres; cleaning up drilled or rough-bored holes to size; single-point boring to a diameter in four-jaw chuck setups; light facing of internal shoulders; small-batch jobbing work where quick insert indexing matters.

Condition

(Used — Good Condition / Previously Run, Functionally Sound)

The boring bar shows clear evidence of workshop use — the shank has the expected patina, tooling marks from clamping screws, and general bench wear along the body consistent with regular lathe use. The insert pocket and clamping screw seat appear intact and undamaged; the seating face that the insert registers against is the critical surface here, and it shows no visible deformation or chipping that would compromise insert seating or repeatability. The shank is straight — no visible deflection or bending — which is the primary functional concern with a boring bar of this length. Clamping screw threads appear serviceable. The 14 Tungaloy CCMT 06 carbide inserts included are new, still seated in their original plastic tray, and represent genuine usable value. A used boring bar in this condition is entirely fit for purpose; the insert pocket geometry and shank dimensions are what define the tool’s accuracy, not the cosmetic finish on the body. If you’re particular, seat a fresh insert, take a light trial cut, and measure your bore — that’s the real verification.

Included:

1 × Sandvik Coromant S16R-SCLCR06 boring bar (16mm shank, 200mm OAL)
14 × Tungaloy CCMT 06 series carbide inserts (new, in tray)

Not included: clamping screw / torx key (Sandvik Torx T8 or T9 typically required — confirm against your existing tooling), boring bar holder, coolant fittings.

Brand Information

Sandvik Coromant is a Swedish cutting tool manufacturer and a division of the Sandvik Group, widely regarded as one of the top two or three insert tooling brands globally — sitting alongside Kennametal and Iscar at the premium end of the market. Their CoroTurn platform, of which this boring bar is a part, set the industry benchmark for indexable insert tooling geometry and is the reference standard in most modern toolrooms and CNC turning facilities worldwide. Sandvik tooling is specified by OEM machine shops and aerospace subcontractors precisely because the insert pocket tolerances and ground geometries are held tightly enough to deliver consistent results across index cycles.

Specifications

Feature	Specification
Brand	Sandvik Coromant
Model / Part Number	S16R-SCLCR06
Type	Internal turning / boring bar — indexable insert
Series	CoroTurn RC
Shank Diameter	16mm
Overall Length (OAL)	200mm
Minimum Bore Diameter	Approx. 20mm (verify against Sandvik catalogue for final confirmation)
Insert Type	CCMT 06 (CCMT060204 / CCMT060208)
Insert Pocket Style	SCLCR — 95° lead angle, right-hand cutting
Cutting Direction	Right-hand (R)
Shank Style	Round, solid steel with knurled grip section
Country of Origin	Sweden (Sandvik Coromant)
Condition	Used — Good Condition
Included Items	1 × boring bar, 14 × Tungaloy CCMT 06 carbide inserts (new)
Not Included	Clamping screw / torx key, boring bar holder, case

Keywords

Sandvik S16R-SCLCR06, Sandvik Coromant boring bar, CoroTurn boring bar 16mm, CCMT 06 boring bar, indexable boring bar 200mm, internal turning bar lathe, boring bar with inserts, SCLCR boring bar, CNC turning tool boring bar, toolroom boring bar Australia, small bore turning tool, carbide insert boring bar

TC-3 Mill Table Toe Clamps 175x45mm

Product Overview

A matched pair of heavy-duty TC-3 mill table clamps, presented in their original wooden storage box. These are the bread-and-butter workholding hardware that lives on every serious milling machine table — solid, repeatable, and built to take the clamping forces that lighter pressed-steel clamps simply can’t handle. Each clamp features a classic T-slot step profile with a central boss for the clamping bolt, machined from hardened steel and sized to suit standard T-slot tables up to 19mm bolt capacity.

Hardened steel step-clamp body (175mm × 45mm × 24mm) — The generous length gives you real mechanical advantage when clamping long workpieces or fixture plates, and the stepped profile means you can adjust clamping height across a useful range without reaching for packing. Fewer compromises at setup, less time mucking around with shims.
Central boss / washer seat for T-slot bolt up to 19mm — The raised boss centres the clamping bolt and distributes load evenly across the clamp body, reducing the risk of the clamp rocking under cutting forces. Critical when you’re hogging out material and need the workpiece to stay exactly where you put it.
Matched pair format — Supplied as a pair, which is how clamps actually get used — opposing clamp pairs balanced across a vise or fixture plate hold symmetrically and prevent moment loading on the workpiece. Having a matched set means consistent geometry between both clamps.
Original wooden storage box included — Keeps the pair together and protects the machined surfaces between uses. Not just cosmetic — it matters when you’re pulling clamps off the shelf in a hurry and don’t want to be fishing through a drawer.
Ideal for — clamping raw stock directly to a Bridgeport or knee mill table, securing fixture plates for production runs, holding angle plates square to the table during layout, and clamping parallels or V-blocks for secondary operations on a surface grinder.

Condition

Used (Fair Condition / Surface Wear — Functionally Sound)

All clamps are mechanically intact with no cracks, chips to the step profile, or deformation to the clamping faces. The T-slot bolt holes and boss seats are undamaged and will accept standard T-slot hardware up to the 19.5mm maximum without issue. That said, these are honest used tools — the surfaces show the kind of patina, light surface rust, and handling marks you’d expect from clamps that have seen workshop service. Some clamps have some endmill marks on the top surface. There is visible surface oxidation and minor pitting consistent with storage rather than heavy abuse, and the original box shows wear commensurate with age. None of this affects the clamping function: step clamps work through mechanical contact at the clamping face and the T-slot, and the working surfaces on these remain serviceable. If you’re fussy about rust transfer to finished workpieces, a light pass with Scotch-Brite and a wipe of Way Oil before first use will sort it out. Recommended first use: check the boss bore against your T-slot bolts and confirm seating before torquing down.

Included:

2 × TC-3 Step Mill Table Clamps (175mm × 45mm × 24mm, max 19mm T-slot bolt) — 1 pair
1 × Original wooden storage box

Not included: T-slot bolts, step blocks, nuts, or washers. These will need to be sourced separately to suit your machine’s T-slot size.

Brand Information

No manufacturer’s brand marking is visible on these clamps. Unbranded or OEM step clamps of this pattern and construction quality are commonly produced in Taiwan and mainland China for the industrial and toolroom market, and when built to correct geometry and hardened appropriately, they perform on par with branded equivalents for standard workholding duties. At this price point and for this type of application, the geometry of the step profile and the integrity of the clamping face matter far more than the badge — and both check out here. Buyers sourcing name-brand equivalents would typically be looking at Kipp, Mitee-Bite, or local industrial suppliers at considerably higher cost per pair.

Specifications

Feature	Specification
Type	Step Mill Table Clamp (TC-3 pattern)
Quantity per kit	2 clamps (1 matched pair)
Clamp Length	175mm
Clamp Width	45mm
Clamp Height	24mm
Maximum T-Slot Bolt Diameter	19mm
Material / Construction	Hardened steel, machined step profile
Brand	Unbranded / OEM
Country of Origin	Unknown (unbranded)
Condition	Used — Fair Condition (surface wear and oxidation, functionally sound)
Included items	2 × step clamps, original wooden storage box
Not included	T-slot bolts, step blocks, nuts, washers
Available pairs	3 pairs available — sold separately (1 pair per listing)

Keywords

TC-3 mill table clamps, step clamps milling machine, T-slot clamps pair, mill table workholding, milling clamp set Australia, step clamp 175mm, 19mm T-slot bolt clamp, toolroom clamps, Bridgeport clamps, knee mill workholding, milling fixture clamps, used mill clamps Australia

Mitutoyo 40-45 Holtest 36-710

Product Overview

The Mitutoyo Holtest 36-710 is a three-point internal micrometer designed for fast, repeatable bore measurement in the 40–45 mm range. Unlike a two-point bore gauge that requires a reference master to give an absolute reading, the Holtest self-centres in the bore via its three-contact anvil system, delivering a direct reading off the thimble — no tramming, no rocking, no guesswork. A staple of serious toolrooms and production floors across Japan and Australia for decades, this is a genuine Mitutoyo instrument with the pedigree to back it up.

Three-point self-centring contact system — The tri-anvil head automatically centres itself in the bore, eliminating the angular error that plagues two-point bore gauges when the operator fails to find true diameter. For tight-tolerance work — think H7 fits, hydraulic cylinder bores, or bearing housings — this matters directly to the number on the thimble.
Direct micrometer reading to 0.005mm graduation — The thimble reads like a standard outside mic, so there’s no interpolation from a dial face or encoder display. On the bench, this means the reading is unambiguous and repeatable without a secondary reference gauge in hand.
40–45 mm measuring range — Covers a critical band of bore sizes that appear constantly in general machining: 40 mm and 45 mm are both common metric shaft/bore standards, and this single instrument handles the full 5 mm span without a head change or extension swap.
Compatibility and accessories — The Holtest 36-710 is a standalone instrument. Setting rings are required for absolute zeroing and calibration verification; the seller notes setting rings are available separately — strongly recommended for any production or inspection application.
Ideal for — Measuring bearing housing bores, checking cylinder liner internal diameters, verifying reamed or bored holes to H6/H7 tolerance, inspecting bushing fits on hydraulic or pneumatic components, and production QC on turned or bored 40–45 mm features.

Condition

Used (Good Condition / Pre-owned, Functionally Sound)

The measuring head contacts and anvil faces present well — no visible pitting, scoring, or chipping on the contact points, which is the surface that actually determines measurement integrity. The thimble rotates smoothly with consistent feel through the full range, and there is no detectable spindle slop or roughness in the mechanism. The instrument carries the expected patina of a used Mitutoyo — minor handling marks and light wear on the knurled grip body — but nothing that touches the precision surfaces or the calibrated thread. The original wooden storage case, paperwork, and original accessories are included, which is a genuine plus for a used Mitutoyo: the box keeps the anvils protected between uses and the documentation confirms the original specification. As with any pre-owned precision bore measuring instrument, verification against a calibrated setting ring in the 40–45 mm range before putting this to work on close-tolerance jobs is strongly recommended — not because there’s a known issue, but because it’s good metrology practice and the seller has correctly flagged that setting rings are available separately.

Included:

1 x Mitutoyo Holtest Three-Point Internal Micrometer, Model 36-710, 40–45 mm
Original Mitutoyo wooden storage case
Original paperwork / documentation
Original Mitutoyo accessories (as supplied with instrument)

Not Included:

Setting ring(s) — required for zeroing and calibration verification; available separately from the seller

Brand Information

Mitutoyo Corporation, founded in Japan in 1934, is the global benchmark in dimensional metrology — the name machinists reach for when accuracy is non-negotiable. Their instruments are manufactured to tolerances that satisfy ISO, JIS, and ASME standards, and Mitutoyo sits in the top tier of the global precision measurement market alongside Mahr and Tesa, and a clear step above the bulk of import tooling. Japanese-made Mitutoyo instruments carry a strong resale value and a well-established aftermarket calibration and service network in Australia, making them a sound long-term investment for any toolroom or inspection bench.

Specifications

Feature	Specification
Brand	Mitutoyo
Model	36-710
Type	Three-Point Internal Micrometer (Holtest)
Series	368 — Holtest Three-Point Internal Micrometer
Measuring Range	40–45 mm
Graduation / Resolution	0.005mm
Accuracy	±0.003 mm (verify against current Mitutoyo specification sheet)
Contact System	Three-point self-centring anvil
Material / Construction	Hardened steel anvils; aluminium alloy body
Country of Origin	Japan
Condition	Used — Good Condition
Included Items	Instrument, original wooden case, paperwork, original accessories
Not Included	Setting ring(s) — available separately from seller

Keywords

Mitutoyo 36-710, Mitutoyo Holtest, Mitutoyo three-point internal micrometer, bore mic 40-45mm, Holtest internal micrometer, three-point bore gauge, internal micrometer toolroom, bore measurement precision, Mitutoyo Japan micrometer, bore mic machining, internal mic 40mm 45mm, precision bore gauge Australia

Tsugami 47pc PTW B-4 Gauge Block Set

Product Overview

This Tsugami 47-piece PTW B-4 gauge block set is a Japanese-made slip gauge kit built for toolroom and workshop measurement work — stacking combinations to verify dimensions, setting comparators, calibrating micrometers, and establishing reliable reference lengths on the bench. Housed in its original wooden case, this set covers a practical range of sizes that handles the majority of everyday precision measurement tasks found in a production or jobbing shop environment.

B-4 Grade Accuracy — B-4 (also referenced as Grade 2 in JIS standards) is a working-grade specification, meaning these blocks are calibrated for general workshop and inspection use rather than laboratory-grade master work. For setting comparators, checking micrometer calibration, or establishing reference dimensions on the bench, working grade is exactly what you need — and keeps cost and risk in proportion to the application.
47-Piece PTW Series Configuration — The PTW B-4 build covers the incremental steps needed to wring together virtually any target dimension within range. Having the right number of pieces in a logical series minimises the number of blocks in any given stack, which directly reduces accumulated error — fewer joints means tighter combined uncertainty.
Hardened Steel Construction — Tsugami gauge blocks are manufactured from hardened alloy steel with lapped and ground reference faces. Hardened steel blocks hold their geometry under repeated use and resist the minor handling wear that would degrade softer materials. The lapped faces allow wringing — the molecular adhesion that locks blocks together without fasteners — which is the foundation of reliable slip gauge work.
Original Wooden Case Included — The fitted wooden case keeps each block indexed in its correct slot, protecting faces from contact damage during storage and transport. A full case also makes it immediately obvious if a block is missing from the set.
Ideal For — Setting dial comparators and bench micrometers to a known reference dimension; calibrating and zeroing outside micrometers across their range; establishing precise depth references for surface grinding setups; checking go/no-go gauge wear on the inspection bench; setting toolroom sine bars and sine plates for angular work.

Condition

(Used — Fair Condition / Well-Used Working Set with Modified and Damaged Blocks)

This set has seen genuine workshop service and that needs to be called out clearly before purchase. The majority of blocks remain in serviceable condition — faces are wrингable on most pieces and the blocks function as working-grade references for general bench use. However, a number of blocks have been physically modified during their working life: examples observed include corner chamfers milled into blocks and top faces that have been ground to a radius — modifications made to suit specific clearance requirements in prior applications. These alterations change the geometry of the affected blocks and they should not be relied upon for measurement work without individual inspection and verification against a master. The most significant damage is to the 1 mm block, which is in unusable condition and should be considered absent from the set for practical purposes. Buyers should inspect each block individually upon receipt, discard or quarantine any that do not wring cleanly or show compromised face geometry, and verify remaining blocks against a known master or calibrated reference before committing them to critical measurement work. For setting comparators, rough inspection, or educational use, the serviceable blocks in this set will do the job — just go in with clear eyes about what you’re working with.

Included:

1 x Tsugami PTW B-4 47-piece gauge block set (hardened steel, JIS Grade 2 / B-4)
1 x Original fitted wooden storage case

Not Included:

Calibration certificate
Wringing film or protective accessories

Brand Information

Tsugami is a Tokyo-based Japanese precision engineering company with a long-standing reputation in machine tools and precision measuring equipment. Japanese-manufactured gauge blocks from this era are well regarded in the toolroom trade — sitting in the same quality tier as RSK and alongside Mitutoyo’s working-grade offerings — reflecting Japan’s post-war commitment to tight manufacturing tolerances and consistent material quality in metrology products. While Tsugami is today better known internationally for its CNC sliding-head lathes, their legacy metrology products carry the same hallmarks of Japanese toolroom manufacture: consistent hardening, well-lapped faces, and reliable dimensional control at time of production.

Specifications

Feature	Specification
Brand	Tsugami
Model / Series	PTW B-4
Type	Slip / Gauge Block Set
Grade	B-4 (JIS Grade 2 — Working / Workshop Grade)
Number of Pieces	47 pieces (1 mm block unusable — effectively 46 serviceable pieces at best)
Measurement System	Metric (mm)
Material / Construction	Hardened alloy steel, lapped reference faces
Reference Temperature	20°C / 68°F (as marked on case label)
Country of Origin	Japan (Tokyo)
Case / Packaging	Original fitted wooden storage case included
Calibration Certificate	Not included
Condition	Used — Fair. Majority of blocks serviceable. Several blocks modified (chamfers milled, faces ground). 1 mm block unusable.

Keywords

Tsugami gauge block set, Tsugami PTW B-4, slip gauge set metric, 47 piece gauge block set, Japanese gauge blocks, toolroom slip gauges, hardened steel gauge blocks, gauge block set Australia, workshop grade slip gauges, sine bar setup blocks, micrometer calibration blocks, precision measurement toolroom

Riken 200mm Machinist Frame Level

Riken 200mm Machinist Frame Level — Overview

A precision frame level from Riken, Japan — hand scraped and calibrated to a 0.02mm/m sensitivity. This is the kind of level you reach for when you need to know the truth about a surface, not just a rough approximation. Whether you’re levelling a machine tool base, checking a surface plate, or aligning a lathe bed, the Riken frame level gives you a reliable, repeatable reference you can trust on the shop floor.

0.02mm/m (4″) sensitivity per division — At 0.02mm per metre per division, this level is sensitive enough to detect the kind of twist and tilt that will absolutely show up in your finished work. This is toolroom-grade sensitivity, not a builder’s level. One division of bubble movement represents a real, measurable error that matters when you’re aligning a lathe bed or tramming a precision surface.
Hand scraped base and reference surfaces — The seller confirms this level has been hand scraped and calibrated. Hand scraping removes high spots with far greater precision than grinding alone, producing a reference surface with superior contact and flatness. This isn’t cosmetic — it directly affects the accuracy of every reading the level produces.
200mm cast body with wooden handle — The robust cast frame with its classic ribbed timber handle provides thermal stability and a secure, comfortable grip during use. The mass of the casting helps damp out vibration, which matters when you’re trying to settle a sensitive bubble accurately on a machine in a working environment.
Graduated vial with clear division markings — The vial is calibrated in divisions of 0.02mm/m (marked as 1 DIV = 0.02mm / 1M), giving you a direct, unambiguous reading without conversion. Clarity of graduation matters when you’re making fine alignment corrections and re-checking after each adjustment.
Ideal for precision machine alignment — Specifically suited to levelling lathe beds and checking for twist, aligning surface grinders and surface plates, tramming mill columns, setting up machinery bases prior to grouting, and verifying the flatness of reference surfaces and marking-off tables.

Condition

Used (Good Condition / Hand Scraped and Calibrated)

The level presents in good used condition consistent with careful workshop storage and use. The cast frame retains its original sage-green paint finish with the expected patina of age — minor marks and light surface wear are present on the body, which is entirely normal for a precision instrument of this vintage and type. Critically, the seller confirms the base and reference surfaces have been hand scraped and calibrated, which means the working surfaces have been actively restored to a high standard rather than simply cleaned up. The vial appears intact with no visible damage, and the bubble action should be checked by the buyer against a known reference surface or a calibrated master level prior to putting it into production use — standard practice with any pre-owned precision level. The wooden handle is in good shape with no cracks or loose fixings visible. There is no indication of impact damage to the frame or vial housing. Any cosmetic marks on the paint are surface-level only and do not affect the mechanical function or calibration of the instrument. The original packaging is included, providing secure storage between uses.

Included:

1 x Riken 200mm Precision Frame Level (0.02mm/m graduation)
1 x Original wooden storage box / packaging

Not included: Calibration certificate (recommend verification against a known master level or calibrated surface plate on receipt).

Brand Information

Riken is a well-regarded Japanese precision instrument manufacturer with a long history of producing toolroom and industrial metrology equipment. Japanese-made precision levels of this type sit in the same respected tier as RSK and Kanetomo — instruments that are taken seriously in professional toolrooms, machine shops, and metrology labs across the Asia-Pacific region. Japanese manufacturing heritage in this category means consistent vial sensitivity, quality cast bodies, and careful calibration — characteristics that have made these instruments enduringly useful well beyond their original production dates.

Specifications

Feature	Specification
Brand	Riken
Type	Precision Machinist Frame Level
Body Size	200mm
Sensitivity / Graduation	0.02mm / 1M per division (1 DIV = 0.02mm/m)
Vial Type	Barrel vial, graduated
Base / Reference Surface	Hand scraped and calibrated cast iron
Handle	Ribbed wooden handle, screwed fixing
Body Finish	Painted cast iron, sage green
Country of Origin	Japan
Condition	Used (Good Condition / Hand Scraped and Calibrated)
Included Items	Level, original wooden box / packaging
Not Included	Calibration certificate

Keywords

Riken frame level, Riken precision level, machinist frame level 200mm, precision level 0.02mm per metre, Japanese toolroom level, machine alignment level, lathe bed levelling, surface plate level, engineer’s level Australia, hand scraped level, precision spirit level workshop, toolroom metrology level

SK 4.00-4.50mm Gauge Pin Set

Product Overview

This SK gauge pin set covers the 4.00–4.50mm range in 0.01mm increments — 51 individual pins in total — giving you a precise, go/no-go reference for bore verification, drill and reamer qualification, slot checking, and fixture proving without having to reach for a bore mic every time. Stored in their original fitted case with the pin handle included, this is a complete, ready-to-use set that slots straight onto the bench or into the toolroom cabinet.

0.01mm increment steps across the full 4.00–4.50mm range — Each pin is ground and lapped to a tight tolerance, meaning you can bracket a bore or slot to the nearest ten-micron step and confirm conformance without relying solely on a comparator. That granularity matters when you’re qualifying reamers, checking jig-bore work, or verifying small punch and die clearances.
Hardened and ground pin bodies — Gauge pins are only useful as long as their working surfaces stay true. Hardened steel resists wear from repeated insertion, so the set retains its accuracy across a working life of thousands of checks — far longer than a soft or plated alternative would.
Knurled cap identification system — Each pin’s nominal size is marked clearly on the cap, and the organiser tray labels every position. On a busy bench you can locate the right pin by feel and confirm by sight in seconds, which matters when you’re mid-setup on a machining centre and don’t want to break concentration.
Fitted wooden case with foam lid and labelled tray — Every pin has a home. A disorganised gauge pin set is a damaged gauge pin set; the original case keeps pins seated, protected from impact, and away from swarf and coolant contamination between uses.
Ideal for — qualifying reamed bores, checking drill sizes before final pass, verifying slot widths on EDM and milling work, go/no-go inspection of jig-bored holes, setting bore gauges and small internal comparators, and checking keyway width on shaft and hub fits.

Condition

Used (Like New / Most Pins Factory Sealed)

The set presents in exceptional shape. The seller confirms the majority of pins remain in their original factory-sealed condition — visible through the clear caps — meaning their ground surfaces have never contacted a workpiece bore. The pins that have been used show no visible wear, scoring, or corrosion on the gauge bodies; surfaces appear clean and retain their original ground finish. The fitted wooden case is intact, latches function correctly, and the foam lid insert is undamaged. The labelled plastic tray is clean and all pin positions are occupied. The included pin handle is present and functional. As with any used gauge pin set, it is good practice to verify a sample of pins against a calibrated ring gauge or on a bench micrometer before putting the set into formal inspection service — particularly if SPC or documented inspection records are required. For general toolroom use, fixture proving, and machine setup work, the set is ready to use as received.

Included:

1 x SK Gauge Pin Set, 4.00–4.50mm, 0.01mm increments (51 pins)
1 x Original fitted wooden storage case with foam lid and labelled tray
1 x Pin handle

Not included: Calibration certificate (none supplied — verify against a calibrated reference if formal traceable inspection records are required).

Brand Information

SK (Shinwa Sokutei / SK Japan) is a well-regarded Japanese precision measuring instrument manufacturer with a long history supplying the toolroom and inspection market across Asia-Pacific and globally. Japanese gauge pin sets from SK sit in the same quality tier as Mitutoyo and RSK offerings — manufactured to exacting ground and lapped tolerances, with consistent hardening and surface finish standards expected of Japanese metrology tooling. For Australian machinists and toolmakers, SK is a recognised and trusted name that punches above its price point relative to European equivalents of comparable accuracy.

Specifications

Feature	Specification
Brand	SK (Japan)
Type	Gauge Pin Set (Plug / Pin Gauges)
Measuring Range	4.00mm – 4.50mm
Increment / Resolution	0.01mm (every 10 microns)
Number of Pins	51 pins
Material / Construction	Hardened and ground gauge steel
Identification	Size marked on knurled cap; labelled tray positions
Country of Origin	Japan
Condition	Used (Like New) — majority of pins factory sealed
Included Items	51 x gauge pins, original fitted wooden case, pin handle
Not Included	Calibration certificate

Keywords

SK gauge pin set, SK plug gauge set, gauge pin set 4.00–4.50mm, pin gauge set metric, plug gauge set toolroom, bore verification pins, go no-go gauge pins, precision gauge pins Australia, SK Japan metrology, inspection pin set machinist, gauge pin set CNC, toolroom plug gauges metric

SK 6.05-8.50mm Gauge Pin Set

Product Overview

This SK gauge pin set covers the 6.05–8.50mm range in 0.05mm increments, giving you 49 individual ground steel pins for checking bored holes, reamed features, slot widths, and go/no-go inspection work directly at the bench or on the CMM table. Each pin is held in a labelled, white plastic tray inside a hinged timber case — every size is immediately identifiable, which matters when you’re mid-job and need the right pin fast.

0.05mm step increments across the full range — Fine enough to catch an undersized reamed hole or confirm a H7 tolerance bore without reaching for a bore mic on every feature. When you’re chasing two-thou fits on bushings or dowel holes, having every 0.05mm covered means no interpolating between pins.
Ground and lapped pin surfaces — Each pin is cylindrically ground to a high dimensional accuracy, ensuring the pin either passes or doesn’t — no ambiguity from a rough surface skewing the feel. Ground surfaces also resist wear far longer than turned pins, keeping the set accurate over years of bench use.
Individual labelled storage in a rigid tray — The moulded plastic tray holds each pin upright in a dedicated labelled pocket. You pull the right size, use it, return it. No hunting through a loose pile, no mixing up a 7.45 and a 7.50 mid-inspection.
Compatibility — Pins are used freehand or in a pin handle/holder (not included). No adaptors required. Compatible with any standard gauge pin handle sized for this diameter range. Suitable for use alongside ring gauges and CMM qualification routines.
Ideal for — Checking reamed hole diameter before press-fitting dowel pins, verifying slot widths on milled parts, go/no-go inspection of drilled and bored features, setting up bore gauges against a known reference, and qualifying jig-plate hole positions in a toolroom environment.

Condition

Used (Like New / Lightly Used — Approximately Half Unsealed, Half Still Factory-Sealed in Original Plastic)

This set presents in excellent working condition. Approximately half the pins remain sealed in their original factory plastic wrap — they have never been used and retain factory surface finish and dimensional integrity. The remaining pins show light evidence of use but are in good condition: no visible scoring, pitting, or corrosion on the gauge surfaces, and the labelled tray is clean and intact with all pockets populated. The timber case and foam lid lining are sound, with only minor cosmetic wear consistent with bench storage. Mechanically and dimensionally, these pins are fit for precision inspection work. As with any used gauge pin set, verification against a calibrated ring gauge or CMM qualification is recommended before committing to tight-tolerance production inspection — this is standard practice regardless of condition and does not reflect any specific concern with this set. All 49 pins from 6.05mm through to 8.50mm are present and accounted for.

Included:

1 x SK Gauge Pin Set, 6.05–8.50mm, 0.05mm increments (49 pins)
1 x Original moulded plastic storage tray with individual labelled pockets
1 x Original hinged timber case with foam-lined lid

Not included: Gauge pin handle/holder, calibration certificate.

Brand Information

SK (Shin Nippon Sokki / SK Japan) is a well-regarded Japanese precision tool manufacturer with a long history supplying the professional toolroom and production inspection market. SK sits in the same tier as RSK and Niigata, and is frequently found alongside Mitutoyo and Tesa equipment in quality-conscious Japanese and Australian machine shops. Japanese-made metrology tools carry a well-earned reputation for consistent dimensional accuracy, quality steel, and reliable surface finish — SK gauge pins are no exception, and the brand is a trusted choice for toolmakers and quality engineers who need dependable go/no-go gauging without paying a premium for the Mitutoyo badge.

Specifications

Feature	Specification
Brand	SK (Shin Nippon Sokki)
Type	Gauge Pin Set (Cylindrical Plug Gauges)
Measuring Range	6.05mm – 8.50mm
Step / Increment	0.05mm
Number of Pins	49
Graduation / Resolution	0.05mm (per step increment)
Pin Construction	Cylindrically ground hardened steel
Storage	Moulded plastic tray with individual labelled pockets
Case	Hinged timber case with foam-lined lid
Country of Origin	Japan
Condition	Used (Like New) — approx. half pins still factory-sealed, remainder lightly used, all present
Included Items	49 gauge pins, plastic storage tray, original timber case
Not Included	Gauge pin handle, calibration certificate

Keywords

SK gauge pin set, SK Japan plug gauge, gauge pin set 6mm 8mm, cylindrical plug gauge set, go no-go gauge pins, toolroom inspection pins, pin gauge set Australia, bore inspection gauge, precision gauge pins metric, ground steel plug gauges, hole gauge set machinist, gauge pin set 6.05 8.50mm

SK 8.55-11.45mm Gauge Pin Set

Product Overview

This SK gauge pin set covers the 8.55–11.45 mm range in 0.05 mm increments, giving you a comprehensive bank of hardened steel reference pins for hole checking, go/no-go inspection, fixture setup, and precision bore verification on the bench or at the machine. Housed in a fitted wooden case with individual labelled holders, every pin is immediately identifiable and protected — exactly how a toolroom set should be stored.

0.05 mm increment stepping across the full range — with 58 pins spanning 8.55 mm to 11.45 mm, you can bracket any target bore to within 0.05 mm without interpolating. That resolution is the difference between a confident pass/fail call and a guess on a tight-tolerance hole.
Hardened and ground pin construction — gauge pins are only as good as their cylindricity and surface finish. Ground steel pins hold their diameter along the working length, so you’re checking the bore, not measuring the pin’s own taper or barrel shape.
Individual labelled caps on every pin — each pin sits in a captive plastic cap engraved with its nominal size. Pull the pin, use it, return it to its slot without fumbling through a loose pile. In a production environment, that organisation prevents mix-ups and keeps inspection repeatable.
Self-contained wooden storage case — the hinged timber case with foam-lined lid keeps the set together, protects the ground surfaces from contact damage, and makes the set portable between the bench and the machine. No improvised storage means no lost pins and no mystery scratches on precision surfaces.
Ideal for — checking reamed or bored holes to tolerance in jig boring, verifying drill and reamer sizing before committing to a final pass, setting up go/no-go gauging stations on turned or milled components, qualifying fixture hole positions, and checking bearing housings or bush fits in fitter/turner work.

Condition

(Used — Like New / Lightly Used, Majority of Pins Unused)

The seller confirms that only a small number of pins from this set have seen use, with the remainder in original, unused condition. Visually, the pins present extremely well — ground surfaces show no scoring, pitting, or corrosion, and the plastic size caps are intact and legible across the set. The wooden case is sound, the foam insert is undamaged, and all pin slots are populated. As with any used gauge pin set being put into a calibrated inspection role, it is good practice to verify the working pins against a calibrated ring gauge or with a bench micrometer before relying on them for first-article or tolerance-critical inspection. For toolroom setup work — checking clearance fits, qualifying reamers, or setting fixtures — the set is ready to use as-is.

Included:

1 x SK Gauge Pin Set, 8.55–11.45 mm, 0.05 mm increments (58 pins)
Original hinged wooden storage case with fitted holder tray
Individual labelled plastic size caps on all pins

Not included: Calibration certificate (not supplied with this used set — recommend verification against a traceable ring gauge if use in formal inspection is intended).

Brand Information

SK (Shin Nippon Koki / S-K brand, Japan) is a well-regarded Japanese precision tool manufacturer producing metrology and machine tool accessories to the standard expected of Japanese industrial tooling — consistent geometry, quality hardened steel, and reliable size labelling. SK sits in the same trusted tier as Niigata and RSK for gauge and reference tooling, below the premium Mitutoyo and Tesa bracket but well above generic import product. Japanese-made gauge pins are a known quantity in Australian toolrooms: the steel quality and grinding standards are dependable, and the sets hold up well in daily shop use.

Specifications

Feature	Specification
Brand	SK (Japan)
Type	Gauge Pin Set (Plug / Pin Gauges)
Measuring Range	8.55 mm – 11.45 mm
Increment / Step	0.05 mm
Number of Pins	58 pins
Pin Construction	Hardened and ground steel
Identification	Individual labelled plastic size caps, engraved nominal size
Case / Storage	Original hinged wooden case with fitted holder tray and foam-lined lid
Country of Origin	Japan
Condition	Used — Like New (majority of pins unused, lightly used examples in good condition)
Included Items	58 x gauge pins, original wooden case
Not Included	Calibration certificate

Keywords

SK gauge pin set, SK plug gauge set, gauge pin set 8.55–11.45mm, metric pin gauge set, hardened gauge pins Australia, toolroom pin gauges, go no-go gauge pins, bore checking pins, precision pin gauges metric, hole gauge set machinist, Japanese gauge pins, inspection pin set CNC

Vargus Deburring Set

Product Overview

The Vargus 6-Piece Deburring Set is a professional-grade hand deburring kit built for toolroom and production environments where clean, consistent edge preparation is non-negotiable. Featuring a range of interchangeable deburring tools with adjustable-length handles, this set covers internal bore (ID), external (OD), and insert-style deburring across a wide variety of materials and edge profiles — the kind of versatility that earns its place on the bench between the lathe and the surface grinder.

Interchangeable insert system — The insert-based deburrer allows blade swaps without replacing the entire tool body. On the floor, this means you’re not grinding down a dedicated blade or binning a handle every time an insert chips on hardened swarf; you swap the cutting element and get back to work in seconds.
ID and OD capability in a single set — Dedicated ID and OD tools mean you’re not forcing a flat scraper into a bore or dragging a deburrer across an outside edge the wrong way. Each tool is geometry-matched to its task, which matters when you’re cleaning up drilled or bored holes to a tight chamfer callout rather than just “knocking the edge off.”
Adjustable-length handles — All six tools feature length adjustment, giving you reach into deep counterbores, blind holes, and recessed faces without the awkward grip and inconsistent pressure that causes chatter marks or uneven chamfers. Particularly useful on longer turned components or when deburring inside a fixture.
Ergonomic knurled red body — The ribbed, high-visibility handles provide positive grip even with coolant-wet or oily hands — a practical consideration when deburring freshly machined parts straight off the chuck. The knurling pattern is aggressive enough to index naturally under hand pressure without slipping.
Ideal for — Deburring drilled, bored, reamed, and milled holes on lathes and mills; cleaning up turned OD chamfers; removing edge burrs on CNC-machined components prior to inspection or assembly; prepping hydraulic and pneumatic port entries; finishing off cross-drilled oilways on shafts and housings.

Condition

(Used — Good Condition / Previously Used, Mechanically Sound)

The set presents in honest used condition with visible wear consistent with workshop deployment — the tool bodies show handling marks and minor surface scuffing to the red plastic housings, and some of the blade tips and noses show darkening and minor soiling from previous use. That said, the mechanical adjustability of each handle functions correctly, and the insert/blade retention mechanisms engage positively without play or damage. The cutting edges across the set show varying degrees of use wear; some blades appear to have had light work only, while others show more evident wear. As with any used deburring set, buyers should inspect each cutting insert on arrival and replace any blades that no longer cut cleanly — Vargus replacement inserts are commercially available and inexpensive. The handle bodies and adjustment mechanisms are the long-life components here, and those are in good working order. The set is supplied in its original yellow carry case with blue foam insert, which retains all six tool positions securely.

Included:

1 x Vargus 6-Piece Deburring Set (ID, OD, and insert-type deburring tools)
6 x Adjustable-length deburring tool handles with fitted blades/inserts
1 x Original yellow plastic carry case with blue foam insert

Not included: Spare replacement blades or inserts beyond those already fitted to the tools. Buyers requiring fresh cutting edges should source Vargus-compatible replacement inserts prior to production use.

Brand Information

Vargus is an Israeli-founded cutting tool manufacturer with a long-standing reputation in threading, grooving, and deburring tooling for precision machining environments. The company operates at the upper tier of the hand deburring and rotary deburring market, sitting alongside brands such as Noga and Cogsdill in terms of product quality, insert system engineering, and professional shop-room credibility. Vargus tools are widely used in aerospace, automotive, and hydraulics manufacturing where controlled edge preparation is a dimensional and functional requirement, not just a cosmetic step.

Specifications

Feature	Specification
Brand	Vargus
Model	6-Piece Deburring Set (specific model series not legible from available markings — verify against Vargus catalogue)
Type	Hand deburring tool set — ID, OD, and insert deburrer
Number of Pieces	6
Handle Construction	Ribbed red polymer body with black threaded adjustment mechanism
Length Adjustment	Yes — all 6 tools feature adjustable-length bodies
Insert System	Interchangeable blades/inserts (Vargus compatible — verify blade series on receipt)
Application Coverage	Internal diameter (ID), external diameter (OD), insert deburring, flat and angled edges
Country of Origin	Israel
Condition	Used — Good Condition
Included Items	6x deburring tools, original carry case with foam insert
Not Included	Spare replacement blades/inserts

Keywords

Vargus deburring set, Vargus deburring tools, 6 piece deburring kit, hand deburring tool set, ID OD deburring tools, insert deburring tool, deburring tool Australia, toolroom deburring set, bore deburring tool, machinist deburring kit, edge deburring machining, Vargus hand tools Australia

Mitutoyo 6-8mm Digital Holtest Micrometer

Product Overview

This Mitutoyo Digital Holtest is a premium three-point internal micrometer designed for the rapid and highly accurate measurement of small bores in the 6mm to 8mm range.

Three-Point Contact: Unlike two-point calipers that can rock inside a hole, this gauge uses three self-centering anvils spaced at 120°. This geometry automatically aligns the tool squarely within the bore, ensuring you capture the true diameter every time.
Digimatic Readout: The digital LCD screen provides an instant, error-free reading (typically down to a 0.001mm resolution). This completely eliminates the need to squint at tiny mechanical vernier scales in poorly lit shop environments.
Ratchet Stop: Equipped with a constant-force ratchet mechanism on the thimble. This ensures the exact same measuring pressure is applied to the anvils during every use, guaranteeing repeatable results regardless of the operator’s touch.
Small Bore Capability: Measuring accurately under 10mm is notoriously difficult; this specialized Holtest makes it a fast and reliable process.

Condition

Used (Tested & Accurate / Bare Tool + New Ring).

This Holtest has been tested, operates smoothly, and provides reliable, accurate measurements.

Included Bonus: It comes paired with a Brand New ~6mm Mitutoyo Setting Ring. Having a genuine master ring is a massive value-add, as it is the only way to properly calibrate a three-point micrometer before critical work.
Missing Components: Please note that this unit does not come with its original storage box, factory paperwork, or adjustment spanners.

Brand Information

Mitutoyo Corporation (est. 1934) is the undisputed global benchmark for dimensional metrology. Their “Holtest” series is widely considered the best internal bore measurement system in the world, prized for its ability to hold microscopic tolerances even after years of shop-floor use.

Specifications

Feature	Specification
Brand	Mitutoyo (Japan)
Type	Digital Holtest (Three-Point Internal Micrometer)
Measuring Range	6mm – 8mm
Thimble Type	Ratchet Stop
Included Accessories	New ~6mm Mitutoyo Setting Ring
Missing Components	No Box, No Papers, No Spanners
Condition	Used / Tested & Accurate

Keywords

Mitutoyo digital holtest, 6-8mm bore gauge, internal micrometer, three point micrometer, Mitutoyo setting ring, small bore gauge, Digimatic holtest, machinist tools, Japanese metrology.

Venture ATH 10 Hand Tachometer 0-5000

Venture ATH 10 Hand Tachometer — 0–5000 RPM

The Venture ATH 10 is a classic British-made mechanical hand tachometer covering a 0–5000 RPM range, designed for direct contact measurement of rotating shafts, spindles, and chucks without the need for a power source or reflective tape. Built for the toolroom and the shop floor, this is the kind of instrument that earns its keep on a lathe tailstock or machining centre spindle where a quick, reliable RPM check is all you need. Compact, self-contained, and genuinely capable, it belongs in any serious workshop’s instrument drawer.

Dual-range dial with outer and inner scales (0–1000 / 0–5000 RPM) — The large circular dial presents two concentric scales, allowing the operator to read low-speed applications with finer resolution on the inner scale and high-speed spindle work on the outer. This matters because misreading RPM on a lathe — even by 10% — affects surface finish, tool life, and material integrity.
Selectable range control with LOCK function — The top-mounted selector (marked 1000 / 5000) lets you commit to a measuring range before contact, reducing the risk of needle overswing on high-inertia spindles. The dedicated LOCK position freezes the reading so you can pull the instrument clear and read the dial without the needle dropping — a genuine workflow advantage when measuring in confined spaces.
Mechanical contact drive — no batteries, no warm-up — The ATH 10 operates by direct shaft contact via its tip adapter, making it ready the moment you pick it up. On the shop floor this means no flat batteries mid-shift and no dependence on clean reflective surfaces that optical tachometers require.
Interchangeable tip adapters included — The instrument ships with multiple contact tips and a threaded disc adapter (the disc is marked NOT TO BE USED WITH EXTENSION), giving coverage across different shaft end profiles and centre-drilled stock. The cylindrical tips suit centre-drilled shafts; the disc adapter suits flat-ended spindles and chucks.
Ideal for — setting lathe spindle speed against the nameplate chart, verifying milling machine RPM before a finishing pass, checking grinding wheel spindle speed for wheel rating compliance, and confirming drill press RPM when running non-ferrous materials at recommended surface speeds.

Condition

Used (Good Condition / Vintage British Instrument)

Mechanically, this tachometer is in sound working order. The needle responds cleanly to shaft contact, the range selector moves positively between 1000 and 5000 with a firm detent, and the LOCK function engages and releases without sticking. The dial face is legible with no cracked crystal or obscured graduation marks. The contact tips and disc adapter are all present and undamaged. The original fitted case retains its velvet lining and holds all components securely in their correct positions — a good sign that this instrument has been stored correctly rather than rattled around a tool cabinet.

As expected for a vintage British instrument of this era, there is surface patina on the housing and minor age-related oxidisation on some metal surfaces — consistent with decades of toolroom life rather than misuse. The textured wrinkle-finish body shows light wear on contact edges. None of this affects the mechanical or metrological function of the instrument. For a contact tachometer of this type, functional verification is straightforward: run a known-speed spindle (a lathe in back-gear at a stated RPM is ideal) and compare the reading against the nameplate speed. If the reading is consistent and repeatable, the instrument is serviceable.

Included:

1 x Venture ATH 10 Hand Tachometer, 0–5000 RPM
1 x Large disc contact adapter (marked: NOT TO BE USED WITH EXTENSION)
2 x Cylindrical contact tip adapters (different diameters)
1 x Extension shaft / spindle rod
1 x Original fitted case with velvet lining

Not included: Certificate of calibration (not original equipment for this instrument type; recommend verification against a known spindle speed before critical use).

Brand Information

Venture was a British manufacturer of precision mechanical measuring instruments, producing tachometers, revolution counters, and speed-measuring equipment primarily through the mid-to-late twentieth century for industrial, toolroom, and laboratory applications. British-made metrology instruments of this period — particularly mechanical contact tachometers — were built to a standard comparable with continental European equivalents from makers such as Jaquet and Kübler, with robust mechanical movements intended for long service lives in production environments. The ATH designation indicates the instrument series, with the model designed specifically for hand-held contact measurement in a machining context.

Specifications

Feature	Specification
Brand	Venture
Model	ATH 10
Type	Mechanical contact hand tachometer
Measuring Range	0–1000 RPM (inner scale) / 0–5000 RPM (outer scale)
Range Selection	Selector switch: 1000 / 5000 / LOCK
Drive Method	Direct shaft contact (mechanical)
Power Source	None — fully mechanical
Dial Diameter	Approx. 75 mm (estimated from image)
Construction	Wrinkle-finish metal body, glass or acrylic dial cover
Country of Origin	Great Britain
Condition	Used (Good Condition — see condition notes)
Included Items	Tachometer, disc adapter, 2 x cylindrical tips, extension rod, original fitted case
Not Included	Calibration certificate

Keywords

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