Large 4 Piece 1" to 2" Circle Round Disc Cutter Set Punch Gold Silver Copper Sheet Metal Forming Coins Jewelry Making Tool Made from high-density steel It cuts and punches perfect circles in four sizes: 1 (25.4 mm), 1-1/4" (31.75 mm), 1-1/2" (38.1 mm), and 2" (50.8 mm) Capable of cutting soft metals that are up to 20 gauge in thickness