Description
Mitutoyo 0–25mm Digital Outside Micrometer — IP65 Coolant Proof, 0.001mm Resolution
The Mitutoyo Digimatic outside micrometer is the benchmark digital mic on the toolroom bench — and this IP65-rated, coolant-proof example backs that reputation with genuine workshop credentials. Covering the 0–25mm range to a resolution of 0.001mm (one micron), it delivers the kind of repeatable, confident readings that make it a go-to for close-tolerance work whether you’re on a CNC turning centre or a manual lathe. The LCD readout eliminates thimble misreading, the ZERO/ABS and HOLD functions streamline repetitive measurement, and the IP65 rating means it won’t flinch when coolant hits the frame mid-cut.
- IP65 Coolant Proof Construction — Sealed against coolant ingress and swarf contamination at the thimble, spindle, and display. On a live toolroom floor where mist and flood coolant are routine, this isn’t a luxury — it’s what keeps the instrument reading true shift after shift without corrosion working into the spindle thread.
- 0.001mm (1 µm) Resolution with ABS/INC Digimatic Output — One-micron resolution removes the interpolation guesswork of a vernier thimble and the ABS origin system means you retain your datum even after a battery swap, eliminating the “did I accidentally zero it?” problem on the shop floor.
- HOLD Function for Awkward-Access Measurement — Freeze the reading the moment the spindle locks contact, then read at eye level. Particularly useful when checking bores from the back side of a part or measuring in a confined fixture where you can’t get your eyes to the display cleanly.
- Carbide-Tipped Anvil and Spindle Faces — Ground and lapped carbide faces resist wear from repeated contact with hardened workpieces. On a tool that lives in regular production use, carbide faces maintain flatness and parallelism far longer than steel, protecting the accuracy you paid for.
- Ideal For — Checking turned shaft diameters to tolerance, verifying stock material before machining, lathe runout and diameter confirmation during facing cuts, measuring ground or hardened components, and quality inspection against a nominal on CNC turned parts.
Condition
Used (Good Condition / Functionally Sound, Light Workshop Wear)
This micrometer presents in good used condition consistent with careful toolroom service. The spindle advances and retracts smoothly with no perceptible slop, backlash, or binding — the thimble action is positive and the ratchet stop engages cleanly and consistently, which is the critical mechanical test for a mic of this type. The carbide anvil and spindle faces show no visible pitting, chips, or flat spots to the naked eye and close examination; they close parallel and the digital display zeroes correctly with faces in clean contact. The frame carries the kind of light patina and minor handling marks you’d expect from a tool that’s been used properly — nothing that affects measurement geometry or function. The LCD is clear and fully legible with no dead segments. No significant corrosion is noted on the spindle or barrel. As with any used precision instrument changing hands, it is strongly recommended to verify zero against a known reference — either a certified gauge block stack or a 0–25mm setting standard — before putting this mic into production use. If traceability is required for your QMS, arrange a formal calibration certificate from a NATA-accredited lab post-purchase.
Included:
- 1 x Mitutoyo 0–25mm IP65 Digimatic Outside Micrometer (0.001mm resolution)
- Original Mitutoyo moulded carry case
- Original papers and instruction manual
- Mitutoyo warranty / calibration certificate documentation
- Original accessories as supplied
Not Included: No additional setting standards or gauge blocks are included beyond what is listed above. A replacement battery (SR44 / LR44 type) may be required depending on remaining charge.
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 global metrology — sitting alongside Mahr, Tesa, and Starrett as a reference-grade brand trusted in aerospace, automotive, and toolroom environments worldwide. Their instruments are manufactured in Japan to demanding internal standards, and Mitutoyo’s Digimatic series in particular has become the default digital measuring instrument in serious production and toolroom environments across Australia. When you buy Mitutoyo, you’re buying the brand that calibration labs, toolrooms, and OEM manufacturers reach for when the number actually has to be right.
Specifications
| Feature | Specification |
|---|---|
| Brand | Mitutoyo |
| Model | 395-251 (verify against unit — visually consistent with Mitutoyo IP65 Digimatic outside micrometer series) |
| Type | Digital Outside Micrometer (Digimatic) |
| Series | IP65 Coolant Proof Digimatic |
| Measuring Range | 0–25mm |
| Resolution | 0.001mm (1 µm) |
| Accuracy | ±0.001mm (verify against current Mitutoyo datasheet for confirmed model) |
| Display | LCD Digimatic digital readout |
| IP Rating | IP65 — coolant and dust resistant |
| Anvil / Spindle Faces | Carbide-tipped, ground and lapped |
| Functions | ZERO/ABS (absolute origin), HOLD, ORIGIN |
| Data Output | Mitutoyo Digimatic compatible (SPC output port — cable not included) |
| Battery | SR44 / LR44 (1.5V button cell) |
| Country of Origin | Japan |
| Condition | Used — Good Condition / Functionally Sound |
| Included Items | Micrometer, original case, papers/manual, warranty documentation, original accessories |
| Not Included | SPC data cable, gauge blocks / setting standard |
Keywords
Mitutoyo 395-251, Mitutoyo digital micrometer, Mitutoyo Digimatic outside micrometer, 0-25mm digital micrometer, IP65 coolant proof micrometer, outside micrometer 0.001mm resolution, toolroom micrometer Australia, digital outside mic, precision measuring tools Australia, Mitutoyo micrometer used, machinist micrometer, CNC inspection micrometer
