HARFINGTON Firm Joint Outside Caliper 400mm 16 inch 410 Stainless Steel Firm Friction Joint External Measurement Tool

1. 400mm 16 inch outside firm joint caliper with a max open length (capacity) of 275mm/10.8 inch.2. Our metal calipers are forged from 410 stainless steel, with overall heat treatment, micro-magnetic, corrosion-resistant, high hardness, high torque, and good toughness.3. Smooth surface and burr-free, accurate measurement, can be used for a long time and not easy to loosen.4. Outside calipers are used to measure the external size, thicknesses and outside diameters of objects.5. 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.