Description
Condition
New (Sealed).
This digital micrometer is a brand-new, factory-sealed item. It has never been removed from its original packaging, ensuring the instrument is pristine and the battery life is 100% unused. It comes complete with the 25mm setting standard (calibrated master bar), key spanner, battery, and certificate of inspection inside the sealed case.
Product Overview
The Mitutoyo 293-331-30 is a premium IP65 Coolant Proof digital micrometer with a measuring range of 25mm – 50mm (1″ – 2″). Unlike the “standard” 0-25mm model, this unit is designed for measuring slightly larger diameters, such as camshaft journals, shafting, or larger turned parts.
This model features SPC Data Output, allowing you to connect it to a PC or data logger (via a waterproof input cable) for statistical process control. It is built with Mitutoyo’s Ratchet Stop thimble, which provides a constant measuring force to ensure consistent readings regardless of the operator’s skill level. The IP65 rating ensures the electronics are completely dust-tight and protected against coolant splash and oil, making it tough enough for direct use in CNC grinding or milling environments.
Brand Information
Mitutoyo Corporation (est. 1934) is the global leader in dimensional metrology. The 293-Series “Coolant Proof” micrometers are the most popular digital micrometers in the world, renowned for their incredible battery life (approx. 2.4 years) and their carbide-tipped measuring faces which resist wear and chipping.
Specifications
| Feature | Specification |
| Model | 293-331-30 |
| Measuring Range | 25mm – 50mm (1″ – 2″) |
| Resolution | 0.001mm (.00005″) |
| Accuracy | ±1µm |
| Protection | IP65 (Coolant Proof) |
| Data Output | Yes (SPC) |
| Thimble Type | Ratchet Stop |
| Measuring Faces | Carbide Tipped |
| Included | Micrometer, 25mm Standard, Spanner, Battery |
Keywords
Mitutoyo, 293-331-30, 25-50mm micrometer, 1-2 inch micrometer, IP65 micrometer, SPC data output, digital micrometer, coolant proof, ratchet stop, machinist tools.





