MITUTOYO 139-177 TUBULAR INSIDE MICROMETER WITH EXTENSION

Series 139 - Mechanical with extensions, with insulator. Technical specifications: Accuracy: ±(3+n+L/50) 'm | ±(6+L/50) 'm (139-203, 139-204) n = number of extensions L = Maximum measured length (mm) Graduations: Drum and sleeve graduated matte-chromed, ø 18 mm/ø13 mm (139-203, 139-204) Measuring surface: Carbide - Steel (139-203, 139-204) Measuring spindle: 1 drum revolution equals 0.5 mm Measuring range: 25 mm, 10 mm (139-203), 25 mm (139-204) Extension: ø17 mm, ø10 mm (139-203, 139-204) Reading: 0.01 mm Supplied: In case, key