Round 7 Punch Disc Cutter for Cutting Disc Metal Craft Jeweler Tools Round punch disc cutter;7 pieces sizes: 1/4", 5/16", 3/8", 7/16", 1/2", 9/16" & 5/8" (4, 5, 6, 7, 8, 9, 10mm) Recommended for soft metals such as brass, aluminum, copper, sterling silver and gold up to 20 gauge Constructed of hardened tool steel ;Punchers length (ALL): 1-1/4'';Plate size: 2-1/2'' Quantity: 1;Weight: 1.17lb Roughly