Description
Product Overview
The Mitutoyo 104-140A is a large-range outside micrometer covering 100–200mm, built to the exacting standards that have made Mitutoyo the benchmark in precision metrology worldwide. Designed for the toolroom, production floor, or serious home shop, this micrometer delivers 0.01mm graduation accuracy across its full 100mm range — making it the right tool when you’re measuring large turned components, bored housings, or shaft diameters that exceed the reach of a standard 0–25mm or 50–75mm mic. The frame’s substantial cutaway design reduces thermal transfer from your hands to the workpiece, a detail that matters when you’re chasing tenths on a warm part fresh off the lathe.
- 100–200mm measuring range with 0.01mm graduation — A single instrument covers the full span where most machinists would otherwise need multiple mics. The 0.01mm (10-micron) graduation means you’re reading to a thou-equivalent in metric, sufficient for general toleranced work and a solid baseline before verifying critical fits with a more sensitive comparator.
- Carbide-tipped anvil and spindle faces — Mitutoyo fits carbide contact faces to this series as standard, giving the measuring surfaces significantly better wear resistance than hardened steel alone. On a tool used repeatedly across cast iron, hardened stock, or abrasive aluminium, this extends calibration life and keeps the faces flat and parallel over thousands of measurements.
- Friction thimble (ratchet stop) for repeatable gauging force — Consistent measuring pressure is one of the most overlooked sources of error in manual mic work. The ratchet stop applies a fixed load every time, removing operator-to-operator variability and ensuring readings are repeatable across shifts or between different users checking the same dimension.
- Setting standards / gauge rods included — Unlike smaller mics that can be zeroed closed, a 100–200mm instrument must be set against a reference. Mitutoyo includes a full set of setting rods (gauge standards) with this instrument, so you can zero and verify accuracy across the range without sourcing separate equipment.
- Ideal for — Checking large turned shaft diameters and journals on a centre lathe; measuring bored housing bores and fits in a jig boring context; verifying OD of large round stock before and after cylindrical grinding; incoming inspection of bar stock and castings; toolroom final inspection of large machined components to drawing tolerance.
Condition
(New — Factory Sealed)
This Mitutoyo 104-140A is exactly as it left the factory — the instrument remains in its original sealed wooden presentation case, unfired, with all original accessories, documentation, and Mitutoyo’s warranty card (保証書) included. The measuring faces, thimble, sleeve graduations, and frame finish show absolutely no signs of use, contact, or handling beyond factory packaging. The plastic protective sleeve remains on the instrument as shipped from Mitutoyo’s production facility. As a new instrument from a manufacturer with traceable quality control, it can be placed into service immediately; however, best practice in any toolroom is to verify zero against the included setting rods before first use and confirm the instrument reads correctly at mid-range as well as at the lower limit. This is standard incoming calibration discipline rather than any reflection on the instrument’s accuracy — it simply establishes a documented baseline for your records.
Included
- 1 x Mitutoyo 104-140A Outside Micrometer, 100–200mm, 0.01mm graduation
- 1 x Original Mitutoyo wooden presentation / storage case
- Full set of Mitutoyo setting rods / gauge standards for range verification and zeroing
- Mitutoyo warranty card / 保証書 (guarantee document)
- Mitutoyo user’s manual
- Original factory accessories as supplied
Brand Information
Mitutoyo Corporation, founded in Japan in 1934, is the world’s largest manufacturer of precision measuring instruments and holds a position at the absolute top tier of the global metrology market — consistently benchmarked alongside Mahr, Starrett, and Tesa as a reference-grade choice for toolrooms, calibration laboratories, and production facilities. Japanese manufacturing heritage is central to Mitutoyo’s reputation: their instruments are produced to rigorous JIS and ISO standards, and the brand is recognised by metrology bodies worldwide as a legitimate reference standard source. For an Australian machinist or toolmaker, buying Mitutoyo means buying into a global calibration and service network, readily available spare parts, and an instrument that holds its specification over years of shop-floor use — not a brand that needs qualification.
Specifications
| Feature | Specification |
|---|---|
| Brand | Mitutoyo |
| Model | 104-140A |
| Type | Outside Micrometer (Large Frame) |
| Series | 104 — Large Outside Micrometer Series |
| Measuring Range | 100–200mm |
| Graduation / Resolution | 0.01mm |
| Accuracy | ±0.006mm (refer to Mitutoyo product specification sheet for full tolerance band across range) |
| Anvil / Spindle Faces | Carbide-tipped |
| Measuring Force Control | Ratchet stop (friction thimble) for consistent measuring pressure |
| Frame Material / Construction | Cast iron frame with ground reference surfaces; chrome-plated sleeve and thimble |
| Setting Standards | Gauge rods / setting standards included for range zeroing |
| Country of Origin | Japan |
| Condition | New — Factory Sealed |
| Included Items | Instrument, wooden case, setting rods, warranty card, user’s manual, original accessories |
| Not Included | Nothing missing — complete factory set |
Keywords
Mitutoyo 104-140A, Mitutoyo outside micrometer, Mitutoyo 100-200mm micrometer, large frame micrometer 200mm, outside mic 100-200mm, toolroom micrometer Australia, precision outside micrometer metric, large micrometer setting rods, micrometer 0.01mm graduation, Mitutoyo micrometer Australia, large OD micrometer machinist, production micrometer 200mm
