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 rod measuring system allows the same micrometer to be used for various internal diameters without the need for separate instruments. The model is practical for machine shops, measuring laboratories, and workshops.
Features:
- Measuring range: 2-60" (Drum and extension rod combinations supplied)
- Extension rods: 10 extension rods included in the package
- Measuring faces: very hard, abrasion-resistant measuring faces made of tungsten carbide, suitable for industrial applications and continuous measurement of hard materials
- Scale: 0.001" analog reading
- Measuring type: 2-point inside diameter measurement for holes, bushings, tubes, and cylinders