Features: Micrometers are incredibly precise measuring tools used to accurately measure a variety of materials. The high precision of the micrometers offers machinists a versatile tool for creating high-quality final products. Combining extension rods provide a wide measuring range. Supplied with a standard caliper gauge for zero setting. Carbide measuring faces. Diameter of extension rod: 22mm. Resolution: 0.01mm (metric); 0.001" (inch). Accuracy: metric (3+n+L/50) ųm Inch [0.00005(3+n+L/2)]”. (n = number of rods, L = max. measuring length). Order No. Measuring range Extension rods 107-2060 150-175mm Micrometer head 107-2061 150-1400mm 25mm, 50mm, 50mm, 100mm, 200mm, 400mm, 400mm 107-2062 150-2000mm 25mm, 50mm, 50mm, 100mm, 200mm, 200mm, 400mm, 400mm, 400mm 107-2063 150-2100mm 25mm, 50mm, 50mm, 100mm, 100mm, 200mm 200mm, 400mm, 400mm, 400mm