Mitutoyo 25-50mm Groove Micrometer 146-123

Description

Condition

Used (Perfect Condition).

This groove micrometer is in immaculate, like-new condition. It shows virtually no signs of previous use or handling marks. The spindle rotation is smooth, the ratchet stop functions correctly in both directions, and the measuring flanges are free from damage or wear. It is supplied in its original fitted plastic case, complete with the adjustment spanner.

Product Overview

The Mitutoyo 146-123 is a specialised mechanical micrometer designed specifically for measuring the width, depth, and location of grooves inside bores and tubes. Unlike standard micrometers, it features a rotating spindle with large 12.7mm diameter flanged disks on both the anvil and spindle faces. This unique design allows the instrument to enter a bore and measure the distance between internal groove walls (inside measurement) or the width of external features (outside measurement). The unit is equipped with a two-directional ratchet stop, ensuring a constant measuring force is applied regardless of whether the spindle is being extended or retracted. The satin-chrome finish on the thimble and sleeve reduces glare, making the dual graduations easy to read in various lighting conditions.

Brand Information

Mitutoyo Corporation, established in 1934 in Japan, is the global authority in precision metrology. The company is celebrated for its ability to engineer solutions for complex measuring challenges that standard tools cannot address. The 146 Series Groove Micrometers are a testament to this engineering pedigree, offering high-precision performance for niche applications in the automotive, aerospace, and general machining sectors. Mitutoyo instruments are known for their longevity, smooth mechanical action, and strict adherence to accuracy standards, making them the preferred choice for professional quality control.

Specifications

Keywords

Mitutoyo, 146-123, groove micrometer, internal groove measurement, flanged micrometer, bore groove gauge, 25-50mm micrometer, rotating spindle, Japanese metrology, precision engineering, mechanical micrometer.