CalipersProduct Details1.There are one inside caliper and one outside caliper, inside caliper is available in the same size range as outside caliper.2.Made from stainless steel with hardened and finely polished points, 300mm long.3.Firm joint calipers use friction at the joint to hold the legs not move.4.Outside calipers measure thicknesses and outside diameters of objects, inside calipers measure hole diameters and distances between surfaces.5.Great for you to measure the external and internal size of an object, such as sculpture, pottery and so on.
eBay