Description
Condition
New.
Product Overview
The Mitutoyo 422-231-30 is a specialised “Digimatic” blade micrometer designed for measuring features that standard flat-anvil micrometers cannot access. It features a non-rotating spindle with a thin, blade-shaped anvil and spindle tip (0.75mm thickness), making it the ideal tool for measuring the groove diameter of shafts, keyways, and other narrow recessed features. The instrument is equipped with Mitutoyo’s Absolute (ABS) linear scale, which retains the origin point once set, eliminating the need for zero-setting each time the power is turned on. With a measuring range of 25mm to 50mm, it provides high-resolution digital readings and features a ratchet stop mechanism to ensure a constant measuring force, preventing workpiece deformation and ensuring repeatable accuracy.
Brand Information
Mitutoyo Corporation, founded in 1934 in Japan, is the global leader in precision metrology and measurement instrumentation. The company is renowned for its exacting manufacturing standards and the durability of its products in professional industrial environments. The 422 series blade micrometers demonstrate Mitutoyo’s ability to engineer solutions for difficult measurement challenges while maintaining the high precision and reliability that machinists and engineers worldwide have come to expect from the brand.
Specifications
| Feature | Specification |
| Model | 422-231-30 |
| Measuring Range | 25mm – 50mm |
| Resolution | 0.001mm |
| Accuracy | ±3µm |
| Anvil/Spindle Type | Blade (Type A) |
| Blade Thickness | 0.75mm |
| Spindle Type | Non-rotating |
| Protection Rating | IP54 (Dust-protected, splash-resistant) |
| Data Output | Yes (SPC) |
| Included | Plastic Case, 25mm Standard, Spanner, Battery |
Keywords
Mitutoyo, 422-231-30, blade micrometer, groove micrometer, keyway measurement, digital micrometer, non-rotating spindle, 25-50mm micrometer, Japanese metrology, precision engineering, Digimatic.
