uxcell a13032900ux0122 350mm Long Firm Joint Metal Measurement Inside Outside Caliper Pack of 2;

2 pcs silver tone metal inside outside calipers, great for measuring the external and internal size of an object. Firm joint calipers use friction at the joint to hold the legs unmoving. Outside calipers measure thicknesses and outside diameters of objects, inside calipers measure hole diameters and distances between surfaces.