Tubular Inside Micrometer with Extension

The 140 series models provide an accurate and flexible solution for measuring large internal diameters when the available measuring range varies. The extension arm-based measuring system allows the same micrometer to be used for a wide range of internal diameters without the need for separate instruments. The model is practical for machine shops, measuring laboratories, and workshops.

Features:

- Measuring range: 1000-3000mm (Drum and extension arm combinations supplied)
- Extension arms: 50mm, 100mm (2 pcs), 200mm, 500mm, and 1000mm extension arms included in the package
- Measuring surfaces: Very hard, abrasion-resistant measuring surfaces made of tungsten carbide suitable for continuous industrial measurement of hard materials.
- Scale: 0.01mm analogue reading
- Measuring type: 2-point internal diameter measurement for holes, bushings, tubes, and cylinders.