Firm Joint Inside Outside Caliper SetProduct Details1.Feature - Smooth surface and burr-free, accurate measurement, can be used for a long time and not easy to loosen.2.Material - Our firm joint calipers are forged from 410 stainless steel, with overall heat treatment, micro-magnetic, corrosion-resistant, high hardness, high torque, and good toughness.3.Size - 300mm 12 inch inside caliper and outside caliper with max open length (capacity) of 580mm/22.8 inch and 545mm/21.5 inch.4.Application - Outside calipers measure the external size, thicknesses and outside diameters of objects. Inside calipers measure the inner diameter or groove width of the cylindrical hole.5.
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