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Mitutoyo Gauge Blocks 516-940 Gade 2

Available Now

Condition

This Mitutoyo Gauge Block Set is sold in used condition. Prospective buyers must note that the set is incomplete, with four specific blocks missing from the original count:

1.10mm
1.11mm
1.14mm
1.19mm

The remaining blocks show signs of use, which may include surface scuffs, staining.

Product details and use

This is a metric rectangular gauge block set manufactured by Mitutoyo, serving as physical standards for precision linear measurement. The set is designated as Grade 2, historically known as “Workshop Grade.”

Grade 2 blocks are generally intended for use in the workshop environment rather than a temperature-controlled laboratory. They are typically used for setting up machine tools, checking fixtures, positioning workpieces, and calibrating general-purpose measuring instruments like calipers or micrometers where extremely tight tolerances are not required. While incomplete and showing wear, the remaining blocks in this set can still serve as useful references for general shop applications.

Short brand description

Mitutoyo is a world-leading Japanese manufacturer of precision measuring equipment. For decades, they have been renowned for producing high-quality, reliable instruments standard in metrology laboratories and manufacturing facilities globally.

Features

Metric System: Standard metric rectangular blocks.
Grade 2 Accuracy: Suitable for general workshop precision applications and machine setup.
Steel Construction: Manufactured from hardened steel for durability and dimensional stability.
Wooden Storage Case: Includes the original fitted wooden box to organize the remaining blocks.

Specifications	Details
Manufacturer	Mitutoyo Mfg. Co., Ltd. (Tokyo, Japan)
Model Code No.	516-940
Set No.	BM1-F112/1-2
Grade	Grade 2 (Workshop Grade)
Serial No.	001761
Measurement System	Metric
Block Material	Steel
Total Blocks Currently in Set	108 (Original set size was 112)
Missing Blocks	1.10mm, 1.11mm, 1.14mm, 1.19mm
Case Type	Wooden with metal latches

Keywords

Mitutoyo 516-940, used gauge blocks, slip gauges, metric gage blocks, grade 2 gauge blocks, workshop grade standards, machinist tools, precision measurement, BM1-F112/1-2, incomplete block set, metrology tools.

Mitutoyo 0-25mm Disc Micrometer 169-201

Condition

Used (Excellent).

This disc micrometer is in excellent used condition. While it shows some minor cosmetic signs of previous ownership consistent with a working tool, it has been well looked after and presents very cleanly. The spindle movement is smooth, and the disc faces are flat and free from damage. It is supplied in its original fitted plastic case, complete with the adjustment spanner.

Product Overview

The Mitutoyo 169-201 is a specialized “Disc Type” micrometer, also frequently referred to as a Gear Tooth Micrometer. It features large, flat 20mm diameter disc anvils rather than the standard small measuring faces. This design serves two primary purposes: firstly, it is the standard tool for measuring the “root tangent length” on spur and helical gears (measuring across multiple teeth). Secondly, the large surface area makes it ideal for measuring the thickness of soft materials like paper, rubber, or felt, as the discs distribute the pressure to prevent the tool from indenting the workpiece. The instrument employs a non-rotating spindle mechanism, meaning the disc does not turn as it advances; this eliminates torque on the part, ensuring that delicate surfaces are not marred or twisted during measurement. It also features a ratchet stop for consistent force application.

Brand Information

Mitutoyo Corporation, established in 1934 in Japan, is the global benchmark for precision metrology. The company is renowned for its specific application tools, such as the Series 169, which are engineered to solve measurement problems that standard micrometers cannot address. Mitutoyo disc micrometers are prized in gear manufacturing and quality control labs for their rigidity and the flatness of their measuring discs, which are ground to strict tolerances to ensure accurate contact across the entire face.

Specifications

Feature	Specification
Model	169-201
Measuring Range	0 – 25mm
Graduation	0.01mm
Accuracy	±4µm
Anvil Diameter	20mm
Spindle Type	Non-rotating
Mechanism	Ratchet Stop
Measurable Module	0.5 – 6 (Gear measurement)
Included	Plastic Case, Spanner

Keywords

Mitutoyo, 169-201, disc micrometer, gear tooth micrometer, paper thickness gauge, root tangent measurement, non-rotating spindle, 0-25mm micrometer, Japanese metrology, machinist tools.

Mitutoyo 25-50mm Blade Micrometer 422-231-30

Condition

New.

Product Overview

The Mitutoyo 422-231-30 is a specialised “Digimatic” blade micrometer designed for measuring features that standard flat-anvil micrometers cannot access. It features a non-rotating spindle with a thin, blade-shaped anvil and spindle tip (0.75mm thickness), making it the ideal tool for measuring the groove diameter of shafts, keyways, and other narrow recessed features. The instrument is equipped with Mitutoyo’s Absolute (ABS) linear scale, which retains the origin point once set, eliminating the need for zero-setting each time the power is turned on. With a measuring range of 25mm to 50mm, it provides high-resolution digital readings and features a ratchet stop mechanism to ensure a constant measuring force, preventing workpiece deformation and ensuring repeatable accuracy.

Brand Information

Mitutoyo Corporation, founded in 1934 in Japan, is the global leader in precision metrology and measurement instrumentation. The company is renowned for its exacting manufacturing standards and the durability of its products in professional industrial environments. The 422 series blade micrometers demonstrate Mitutoyo’s ability to engineer solutions for difficult measurement challenges while maintaining the high precision and reliability that machinists and engineers worldwide have come to expect from the brand.

Specifications

Feature	Specification
Model	422-231-30
Measuring Range	25mm – 50mm
Resolution	0.001mm
Accuracy	±3µm
Anvil/Spindle Type	Blade (Type A)
Blade Thickness	0.75mm
Spindle Type	Non-rotating
Protection Rating	IP54 (Dust-protected, splash-resistant)
Data Output	Yes (SPC)
Included	Plastic Case, 25mm Standard, Spanner, Battery

Keywords

Mitutoyo, 422-231-30, blade micrometer, groove micrometer, keyway measurement, digital micrometer, non-rotating spindle, 25-50mm micrometer, Japanese metrology, precision engineering, Digimatic.

Mitutoyo 0-25mm Depth Micrometer 128-101

Condition

Used (Good).
This mechanical depth micrometer is in good, fully functional condition. The measuring mechanism operates smoothly, and the rod movement is consistent. While the item presents well overall, there is some visible cosmetic discolouration on the bottom surface of the base; however, this does not affect the flatness or accuracy of the tool. It is supplied in its original plastic case, complete with the manufacturer’s inspection certificate and the necessary adjustment spanner.

Product Overview

The Mitutoyo 128-101 is a high-precision vernier depth micrometer designed for measuring the depth of holes, slots, steps, and projections with a range of 0 to 25mm. It features a hardened, precision-ground base that sits flush against the workpiece to ensure perpendicularity during measurement. The instrument is equipped with a ratchet stop mechanism, which provides a constant measuring force to eliminate operator error and ensure consistent readings. A measuring rod clamp is also integrated into the design, allowing the user to lock the spindle position to retain a reading after removing the tool from the workpiece.

Brand Information

Mitutoyo is the premier Japanese manufacturer of precision measuring instruments, established in 1934. The company is recognised globally as the benchmark for quality in the metrology sector, producing tools that are essential for high-tolerance manufacturing and quality control. The “128” series of depth micrometers is a staple in machine shops worldwide, favoured for its durability, clear graduations, and the distinct “crisp” feel of its mechanical action, which professionals rely on for accurate feedback.

Specifications

Feature	Specification
Make	Miutoyo
Model	128-101
Measuring Range	0 – 25mm
Graduation	0.01mm
Accuracy	±3µm
Base Dimensions	63.5mm x 16mm
Rod Diameter	4mm
Mechanism	Ratchet Stop (Constant Force)
Features	Measuring Rod Clamp
Included	Plastic Case, Spanner, Inspection Papers

Keywords

Mitutoyo, 128-101, depth micrometer, 0-25mm micrometer, mechanical micrometer, depth gauge, vernier scale, Japanese metrology, machinist tools, precision measurement, engineering tools.

Kanon 300mm Digital Calipers EMA-30

Condition: This pair of Kanon EMA-30 digital calipers is used and shows visible signs of use but remains in good working order. They are supplied in a Mitutoyo storage box.

The Kanon EMA-30 is a 300 mm capacity digital caliper designed for accurate internal, external, depth, and step measurements. With a resolution of 0.01 mm, these calipers provide clear and reliable digital readouts suitable for machining, inspection, and quality control tasks. Built with hardened stainless steel and precision-ground jaws, the EMA-30 ensures consistent measurement performance even in demanding shop environments.

Kanon, a Japanese manufacturer of precision measuring instruments, is well regarded for producing robust, accurate, and cost-effective metrology tools. Their digital calipers are trusted by machinists and toolmakers for repeatable measurements and straightforward operation.

Features & Technical Specifications

Parameter	Detail
Condition	Used, signs of wear, working nicely, supplied in Mitutoyo box
Model	EMA-30
Measuring Range	0 – 300 mm
Resolution	0.01 mm
Accuracy	±0.03 mm (typical for this model)
Display	Digital LCD readout
Measurement Types	External, internal, depth, and step
Construction	Hardened stainless steel, precision-ground jaws
Power Supply	Battery-operated
Storage	Supplied in Mitutoyo fitted case
Brand	Kanon (Japan)

Applications (SEO Keywords)

Reliable digital calipers for machinists and toolmakers
Accurate internal, external, depth, and step measurement up to 300 mm
Suitable for inspection and quality control in machining environments
Durable stainless steel design for workshop and metrology use

Waldown 8sn Pinion Set

Late model 8sn quill pinion shaft with return spring and metric dial depth stop.

Parts Breakdown PDF

More 8sn used parts coming
Waldown 8sn Quill Pinion

Late model 8sn quill pinion shaft

Parts Breakdown PDF

More 8sn used parts coming
Waldown 8sn Handle Boss Set

Original Waldown 8sn quill handle boss with spring and depth stop.

Good working condition. See photos.

Parts Breakdown PDF

More 8sn used parts coming

From the drill pictured.

GOST 5641-66 Precision V Block Matched Pair

Condition

This is a GOST 5641-66 precision V-block and clamp pair, supplied in the original wooden storage box with all hardware. The blocks themselves look virtually unused — only very light superficial marks can be seen under close inspection. These marks are consistent with long-term storage rather than actual workshop use.
Both blocks have been kept under a protective lubricant coating, which has preserved the ground faces and V-grooves extremely well. Although they present as new, they are listed as used due to age and prior ownership.

These USSR-era V-blocks were built for layout work, verifying cylindrical parts, machining setups, inspection tasks, and general toolroom use. Their mass, accuracy, and stable geometry make them reliable on the surface plate or on the mill table.

Features

Specification	Details
Standard	GOST 5641-66
Type	Precision V-block pair with clamps
Manual	PDF
Classification	Type I, Class 2
Block Size	100 × 105 × 80 mm
Material	Precision-ground steel
V-Groove	90° V, matched pair
Machining Features	Side cutouts for clamping to a mill table or fixture
Hardware	Full clamp set included
Storage Case	Original wooden box with factory plate
Origin	USSR-era production
Condition Notes	Near-unused appearance, light storage marks, preserved with lubricant

Keywords

GOST V-blocks, 5641-66 V-block pair, Soviet precision tools, USSR V-block, machinist V-blocks, inspection blocks, cylindrical holding tools, marking-out tools, mill table clamping V-blocks, matched V-block set

View the manual PDF (translation required)

KKS Kuroda UFB-4S MT4 Boring Head

Condition
Used; hand-tested and in good working order. Jaws and feed mechanisms operate smoothly. Visible shop patina from normal use.

Product use / description
Large-capacity boring & facing head for precision boring, fine diameter adjustments, and facing/undercutting operations on milling machines and jig borers. The MT4 shank suits heavier toolroom mills, while the body accepts 22 mm boring bars for rigid setups. Includes an adapter for HSS or carbide shank tools, giving flexibility from roughing to fine finishing.

Brand
KKS (Kuroda) — Model UFB-4S

Features / Specs

Item	Detail
Model	UFB-4S
Head type	Boring & facing head (adjustable)
Shank / mount	MT4 (Morse Taper 4)
Bar capacity	Ø22 mm boring bar holes
Tooling adapter	Adapter for HSS/carbide shank tools (included)
Functions	Precision boring, facing, undercutting, counterboring
Adjustment	Fine radial dial adjustment for setting bore size
Condition notes	Smooth action; cosmetic patina; sold as-is
Included	Head with MT4 shank and tooling adapter (no additional accessories)
Typical uses	Large-diameter bores, seat/shoulder finishing, accurate facing on mills/jig borers

Item	Detail
Set size	32 pieces
System	Metric
Grade	A (KKS standard)
Material	Precision steel, lapped faces for reliable wringing
Increment coverage	Mixed thin steps for fine build-ups plus longer blocks (includes larger pieces up to 60 mm, as pictured)
Finish/marking	Clear size markings; flat, parallel measuring faces
Typical uses	Calibration of micrometers & calipers, sine-bar stacking, height-gauge setting, toolroom inspection
Storage	Wooden case with latch and felt lining
Condition notes	Majority unused; a few blocks with minor cosmetic scratches only; case clean and presentable