Metal Round Disc Cutter 1/4" - 5/8" Cutting Hole Circle Punch Puncher 7 Die Size 8 PC Round Disc Cutter Set Capacity: 20 Gauge ; 1 Plate base diameter: 2-1/2" ; Constructed of hardened tool steel 7 Round cutter sizes: 1/4", 5/16", 3/8", 7/16", 1/2", 9/16" & 5/8" (4, 5, 6, 7, 8, 9 and 10mm) Cuts accurate round discs in soft metal, such as gold, brass, aluminum, copper and sterling silver Quantity: 1