JET Solid Punch, 1/8" X 5" (775421)

Solid PunchMade of the highest grade carbon steel, accurately hardened and tempered preventing splintering and extending lifePowder coated shank protects against rustEdges accurately tempered to stay sharpExtra thick hexagonal shanks minimize roll awayWorking ends accurately ground and hardened to HRC 52 to 58 for maximum serviceStriking end hardened to HRC 42 maximum - won't chip or mushroomSolid (or starting) punches are used prior to using a pin punch