Main Unit for Tubular Inside Micrometer

Mitutoyo 137-013 - Drum for Internal Micrometer (50-63mm)

The Mitutoyo 137-013 is a drum for an internal micrometer and serves as the core of the measuring device. Various extension rods can be attached to the drum to extend the measuring range significantly. This enables measurement of various internal diameters. These main units are used in combination with Mitutoyo's 137 series extension rods.

Features

- Measuring range (Drum): 50-63mm
- Resolution: 0.01mm (analogue scale)
- Compatible with extension rods to extend the measuring range significantly
- Very hard, wear-resistant measuring surface made of tungsten carbide suitable for industrial and continuous measurement of hard materials

The design allows for accurate inside diameter measurement of holes, bushings, cylinders, and tubes.