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: 28mm. Travel of micrometer head: 50mm. Resolution: 0.01mm (metric); 0.001" (inch). Accuracy: metric (7+n+L/50) ųm (n = number of rods, L = max. measuring length). Order No. Measuring Range Extension rods 107-2046 1000-1050mm Micrometer head 107-2047 1000-2000mm 50mm, 100mm, 100mm, 200mm, 500mm 107-2048 1000-3000mm 50mm, 100mm, 100mm, 200mm, 500mm, 1000mm 107-2049 1000-4000mm 50mm, 100mm, 100mm, 200mm, 500mm, 1000mm, 1000mm 107-2050 1000-5000mm 50mm, 100mm, 100mm, 200mm, 500mm, 1000mm, 1000mm, 1000mm