Our metal calipers are forged from stainless iron, with overall heat treatment, wear resistance, durable and long service life The forged high-carbon steel legs feature hardened points for precise marking of the workpiece and precise fine adjustment by opening and closing the legs by means of an adjusting nut. The outside caliper is a useful measurement transfer tool for measuring the external size of round stock or irregular shaped objects, and then transferring that measurement to a ruler. Smooth surface and burr-free, accurate measurement, can be used for a long time and not easy to loosen.
