Edge and center finders are useful for accurately finding the edge and center positions on workpieces when using milling, jig boring and engraving machines. Made from hardened tool steel and then precision ground to close tolerances. The internal tension spring between the shaft and tip provides a flexible connection that allows the tool to work as intended. This set included 5 double edge finders: 1) Double end with 0.500 shaft, 0.500 tip and 0.200 tip, 2) Double end with 0.500 shaft, 0.200 tip and cone tip, 3) Double end with .0375 shaft, 0.200 tip and cone tip and 4) Single end with 0.375 shaft and 0.200 tip and 5) Single end with 0.500 shaft and 0.500 tip. Lengths range from 3 to 3.25 inches long. Comes in a Wooden Box.