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 can 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: 1000-5000mm (Drum and extension arm combinations supplied)
- Extension arms: 50mm, 100mm (2pcs), 200mm, 500mm and 1000mm (3pcs) extension arms included in the package
- Abrasion-resistant surface: Tungsten carbide ultra-hard surface suitable for industrial use and continuous measurement of hard materials.
- Scale: 0.01mm analogue reading
- Measuring type: 2-point internal diameter measurement for holes, bushings, tubes and cylinders.