Description
Product Overview
The Mitutoyo 104-135 is a large-frame outside micrometer set covering a full 0–150mm range via interchangeable anvils — purpose-built for toolroom and production environments where a single instrument needs to span a broad measurement range without sacrificing the sub-tenth accuracy that Mitutoyo instruments are known for. This is a proper bench tool: solid, calibrated, and backed by Japanese manufacturing standards that machinists and toolmakers have trusted for decades.
- 0–150mm range via interchangeable anvils — Rather than stacking multiple fixed-range micrometers on the bench, the 104-135 uses a set of setting standards and interchangeable anvil extensions to cover six 25mm ranges in a single frame. That means less capital outlay, less bench clutter, and one familiar feel across the full range — practical for a toolroom measuring shaft diameters, gauge blanks, or bore plug stock.
- 0.01mm graduation with a vernier thimble — The sleeve and thimble are graduated to 0.01mm, giving you reliable resolution for most production and toolmaking work. The thimble ratchet stop ensures consistent measuring pressure across readings, which directly protects repeatability — particularly important when measuring ground surfaces where over-tightening gives false lows.
- Interchangeable anvil system with setting standards — Each anvil extension is zeroed against its corresponding setting standard (included), so you’re not relying on a wrung slip stack or estimation. This is the correct way to set a large-frame micrometer, and having the original Mitutoyo standards in the kit means the tool is field-ready without sourcing third-party references.
- Solid cast steel frame with heat-insulating thimble guard — The large C-frame is designed with thermal mass in mind. The knurled insulating plates on the frame reduce heat transfer from your hands, which matters on a tool spanning 150mm — body heat across a large frame can introduce measurable thermal expansion that will throw your readings out at this level of precision.
- Ideal for: Measuring large shaft diameters on a lathe, checking ground bore plug and ring gauge ODs, inspecting turned or ground stock before heat treatment, verifying disc brake rotor thickness in automotive machining, and measuring large die blocks or mould tooling components in a toolroom environment.
Condition
(Used — Good Condition / Japanese-made toolroom micrometer, complete with original accessories and setting standards)
This micrometer presents well for a used instrument. The frame carries the expected light patina and minor handling marks consistent with careful toolroom use — nothing that suggests abuse, impact, or improper storage. The measuring faces on both the spindle and the interchangeable anvils show no visible pitting, scoring, or flatness damage to the naked eye; they close cleanly without drag or slop. The thimble rotates smoothly, the ratchet stop engages with the expected positive click, and the lock nut holds position without creep. The sleeve graduations and thimble markings are clean and legible. Critically, the original Mitutoyo setting standards are present — these are the correct reference bars for zeroing each anvil range, and their inclusion means you can verify and set the instrument correctly before use rather than working on trust. As standard practice with any used precision instrument, we recommend zeroing each range against its setting standard before putting the tool into production, and verifying the 0–25mm range at closure as a baseline confidence check. If your application demands certified traceability, the instrument can be sent for formal calibration against NATA-accredited references.
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)
- Mitutoyo setting standards (50mm reference bar and associated standards for each range)
- Original Mitutoyo fitted case
- Original instruction manual / papers
- Calibration certificate
Not included: Nothing noted as missing — kit appears complete as originally supplied.
Brand Information
Mitutoyo Corporation, founded in Japan in 1934, is the world’s largest dedicated manufacturer of precision measuring instruments and sits at the very top of the global metrology market alongside Mahr and Tesa. Their instruments are manufactured to exacting Japanese Industrial Standards (JIS) and are the default specification in aerospace, automotive, toolmaking, and metrology laboratories worldwide. In Australian toolrooms, Mitutoyo is the benchmark brand — when a machinist says “the Mitutoyo says so,” the reading doesn’t get argued with.
Specifications
| Feature | Specification |
|---|---|
| Brand | Mitutoyo |
| Model / Series | 104-135 |
| Type | Outside Micrometer — Interchangeable Anvil Set |
| Measuring Range | 0–150mm (via interchangeable anvil extensions, in 25mm steps) |
| Graduation / Resolution | 0.01mm |
| Accuracy | ±0.006mm (per Mitutoyo specification for this series — verify against current datasheet) |
| Measuring Faces | Carbide-tipped spindle and interchangeable anvils |
| Frame Construction | Cast steel with heat-insulating side plates |
| Measuring Pressure Control | Ratchet thimble stop |
| Setting Standards | Included (Mitutoyo original, 50mm reference bar + range standards) |
| Country of Origin | Japan |
| Condition | Used — Good Condition |
| Included Items | Micrometer, interchangeable anvils, setting standards, original case, manual, calibration certificate |
| Not Included | Nothing noted missing — kit appears complete |
Keywords
Mitutoyo 104-135, Mitutoyo outside micrometer, Mitutoyo interchangeable anvil micrometer, 0-150mm micrometer set, large range outside micrometer, outside mic 150mm, toolroom micrometer Australia, precision outside micrometer set, micrometer with setting standards, Japanese micrometer, bench micrometer, machinist micrometer 150mm
