Description
Product Overview
This Mitutoyo Mechanical Digit Inside Micrometer is a high-precision instrument designed for measuring inside diameters, bore sizes, and internal slot widths from 25mm to 50mm.
- Mechanical Digit Counter: The standout feature of this micrometer is the built-in mechanical counter. It provides a direct, easy-to-read numeric display of the measurement without the need for batteries or fragile electronics. This makes it incredibly reliable in oily or wet shop environments where electronic calipers might fail.
- Caliper-Type Jaws: Uses caliper-style jaws with rounded (radius) measuring faces. These are specifically contoured to make perfect contact with the inside curved walls of a bore, ensuring accurate ID measurements.
- Carbide Tipped: The measuring faces are finished with premium carbide. Because inside micrometers undergo a lot of sliding friction as they are “swept” across a bore, the carbide ensures the jaws will not wear down and lose calibration over time.
- Ratchet Stop: Features a constant-force ratchet mechanism on the thimble, ensuring that every measurement has the exact same pressure applied, regardless of the operator’s touch.
Condition
Used (Great Condition / Complete).
This inside micrometer is in great used condition. As shown in the photo, the green hammertone finish is intact, the digit counter rolls over smoothly, and the thimble action is buttery smooth.
- Included: It comes as a complete set, safely stored in its original Mitutoyo case with the factory papers and the Setting Spanner/Tool used for zeroing and adjustments.
Brand Information
Mitutoyo Corporation (est. 1934) is the global benchmark for dimensional metrology. Their mechanical digit tools are highly sought after by traditional machinists who want the quick-reading convenience of a modern tool combined with the robust, “buy-it-for-life” reliability of pure mechanics.
Specifications
| Feature | Specification |
| Type | Inside Micrometer (Caliper Type) |
| Readout | Mechanical Digit Counter + Thimble |
| Range | 25mm – 50mm |
| Graduation | 0.01mm |
| Measuring Faces | Carbide Tipped (Radius) |
| Thimble Type | Ratchet Stop |
| Included | Micrometer, Spanner, Papers, Case |
Keywords
Mitutoyo digit inside micrometer, mechanical counter micrometer, 25-50mm bore micrometer, caliper type micrometer, internal micrometer, no battery micrometer, machinist bore gauge, Japanese metrology.
