Tubular Inside Micrometer Carbide Tipped

The 137 series models provide an accurate and flexible solution for measuring inside diameters when the available measuring range varies. The measuring system based on extension arms allows the same micrometer to be suitable for various internal measurements without the need for separate devices. The model is practical for machine shops, measuring laboratories, and workshops.
Features:
- Measuring range: 2-12" (Drum and extension arm combinations included)
- Extension arms: 5 extension arms included in the package
- Measuring tip: The measuring surface, made of tungsten carbide, is very hard and abrasion-resistant, suitable for industrial and continuous measurement of hard materials
- Scale: 0.001" analog reading
- Measuring type: 2-point measurement of inside diameter for holes, bushings, tubes, and cylinders.