2pcs 250mm Length Firm Joint Metal Measurement Inside Outside Caliper Silver

Inside calipers are available in the same size range as outside calipers. They have straight legs, turned out at the top and are used to take inside measurements. This is a Metal Measurement Tool Inside and Outside Caliper Gauge,here has a sticky something is a lubricating oil,Plays a role of anti-slip and anti-rust. Long Firm Joint Caliper Material : Metal;Total Length : 300 mm / 12 Measurement Caliper Great for you to measure the external and internal size of an object. Outside calipers measure thicknesses and outside diameters of objects, inside calipers measure hole diameters and distances between surfaces.