Size - 400mm 16 inch outside firm joint caliper with a max open length (capacity) of 755mm/29.7 inch.
Material - Our metal calipers are forged from 410 stainless steel, with overall heat treatment, micro-magnetic, corrosion-resistant, high hardness, high torque, and good toughness.
Feature - Smooth surface and burr-free, accurate measurement, can be used for a long time and not easy to loosen.
Application - Outside calipers are used to measure the external size, thicknesses and outside diameters of objects.
Usage - Firm joint caliper use friction joint to hold the legs not move, adjust a caliper to a scale dimension, one leg of the caliper should be held firmly against one end of the scale and the other leg adjusted to the desired dimension.