Tubular Inside Micrometer Carbide Tipped

The 137 series models provide an accurate and flexible solution for measuring inside diameters when the measuring range varies. The extension arm measuring system allows the same micrometer to measure various internal diameters without the need for separate instruments. This model is practical for machine shops, testing laboratories, and workshops.

Features:

- Measuring range: 50-500mm (Drum and extension arm combinations supplied)
- Extension arms: 13mm, 25mm, 50mm (2 pcs.), 100mm, and 200mm extension arms included
- Measuring surfaces: very hard, abrasion-resistant measuring surface made of tungsten carbide suitable for industrial and continuous measurement of hard materials
- Scale: 0.01mm analogue reading
- Measuring type: 2-point measurement of inside diameters for holes, bushings, tubes, and cylinders