Inside Outside Caliper Stainless Steel Firm Friction Joint Measuring ToolProduct Details1.Firm joint calipers use friction at the joint to hold the legs not move2.There are one inside caliper and one outside caliper, inside caliper is available in the same size range as outside caliper3.Made from stainless steel with hardened and finely polished points, 200mm(8") long4.Outside calipers measure thicknesses and outside diameters of objects, inside calipers measure hole diameters and distances between surfaces5.Great for you to measure the external and internal size of an object, such as sculpture, pottery and so on.
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