Description
Product Overview
The Mitutoyo 104-135 is a large-frame outside micrometer covering the full 0–150mm range with interchangeable anvils — purpose-built for the toolroom or production floor where a standard 25mm-increment mic set simply isn’t practical. Rather than swapping between six individual micrometers, this single instrument handles the entire span, making it the go-to choice when you need to measure across a broad range of diameters, widths, or thicknesses without breaking your workflow. Backed by Mitutoyo’s Japanese manufacturing standards, it delivers the accuracy and repeatability that toolmakers and fitters expect from a first-tier metrology brand.
- 0–150mm range via interchangeable anvils (0.01mm graduation): A single micrometer covering what would otherwise require a six-piece set. Each anvil extension is precision-ground to a known length, so swapping ranges doesn’t introduce guesswork — provided you verify zero against the supplied setting standards before measuring. This matters enormously on the floor where time and bench space are both limited.
- 0.01mm (10 micron) graduated thimble with vernier: The sleeve and thimble combination allows direct reading to 0.01mm, which is the practical resolution ceiling for a manual mic of this frame size. At large spans, thermal growth in the workpiece and the frame itself becomes the limiting factor — not the instrument’s graduation — so 0.01mm is exactly the right resolution for this range.
- Large-frame cast iron / steel construction with lightening holes: The distinctive perforated frame reduces mass without sacrificing rigidity, keeping hand fatigue manageable when you’re holding the mic open at 100–150mm for extended periods. The frame geometry is ground and hardened at the measuring faces and anvil seating surfaces to maintain geometric accuracy across the full range.
- Interchangeable anvil system with setting standards: The instrument ships with a full set of anvil extensions and the corresponding setting standards (gauge blocks or reference rods) needed to establish a verified zero at each range step. Without the setting standards, you cannot confidently zero the instrument — their inclusion is non-negotiable for accurate work, and this set includes them.
- Ideal for: Measuring large-diameter turned components on the lathe between centres, checking bar stock and billet dimensions before programming a CNC turning centre, verifying large bore diameters indirectly against a transfer standard, incoming inspection of shaft and housing diameters, and toolroom verification of ground or milled flat features beyond the reach of a standard bench mic.
Condition
(New — Factory Sealed)
This instrument is factory sealed and has not been used, calibrated-in, or opened prior to sale. All measuring surfaces — the spindle face, the fixed anvil, and the interchangeable anvil extensions — are in as-manufactured condition with no contact marks, corrosion, or handling wear. The thimble, sleeve graduations, and locking lever are untouched. The setting standards and accessories are in their original packaging within the case. As with any new precision instrument that has been in storage, we recommend a basic verification on receipt: clean the measuring faces with a lint-free cloth, allow the instrument to thermal-soak at your shop temperature for a minimum of two hours, then zero-check at each range step using the supplied setting standards before taking critical measurements. This is standard practice for any micrometer entering service — not a reflection of any concern about this particular instrument.
Included
- 1 x Mitutoyo 104-135 Outside Micrometer, 0–150mm, 0.01mm graduation
- Full set of interchangeable anvil extensions (covering 0–25, 25–50, 50–75, 75–100, 100–125, 125–150mm ranges)
- Corresponding setting standards / reference rods for zero verification at each range
- Spanner / pin wrench for anvil changes
- Original Mitutoyo carry case
- Original factory packaging
Not Included
- External calibration certificate (NATA or otherwise) — recommend calibration against a certified standard if traceability is required for QA documentation
Brand Information
Mitutoyo Corporation, founded in Japan in 1934, is the world’s largest dedicated manufacturer of precision measuring instruments and sits at the top tier of the global metrology market alongside Mahr, Tesa, and Starrett. Their micrometers, vernier instruments, and gauging equipment are the de facto standard in Japanese and Australian toolrooms, automotive plants, and aerospace supply chains — specified by engineers who understand that the cost of a mis-measurement vastly exceeds the cost of a quality instrument. Mitutoyo’s manufacturing tolerances, surface finish standards, and quality control processes are among the tightest in the industry, and their instruments are routinely used as transfer standards against which other gauges are checked.
Specifications
| Feature | Specification |
|---|---|
| Brand | Mitutoyo |
| Model / Part Number | 104-135 |
| Type | Outside Micrometer — Interchangeable Anvil |
| Series | 104 (Large Range Outside Micrometer) |
| Measuring Range | 0–150mm (via interchangeable anvils in 25mm increments) |
| Graduation / Resolution | 0.01mm |
| Vernier Reading | 0.001mm (vernier scale on sleeve) |
| Accuracy | ±0.006mm across full range (per Mitutoyo specification) |
| Spindle Thread Pitch | 0.5mm |
| Frame Material | Cast iron frame with hardened and ground measuring faces; lightening holes for reduced mass |
| Spindle / Anvil Material | Hardened steel with carbide measuring faces |
| Ratchet / Friction Thimble | Ratchet stop included for consistent measuring force |
| Locking Mechanism | Spindle lock lever |
| Country of Origin | Japan |
| Condition | New — Factory Sealed |
| Included Items | Micrometer body, full interchangeable anvil set, setting standards / reference rods, spanner, original case and packaging |
| Not Included | External NATA calibration certificate |
Keywords
Mitutoyo 104-135, Mitutoyo outside micrometer, Mitutoyo interchangeable anvil micrometer, 0-150mm micrometer, large range outside micrometer, outside mic 150mm, toolroom micrometer Australia, precision micrometer set, Mitutoyo Series 104, micrometer large frame, CNC inspection micrometer, machinist micrometer Australia
