SE JT-SP310 Locking Disc Cutter Set (10 Piece) Disc cutter diameter sizes: 1/8", 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4" Various sized circles Stainless steel base labeled with disc sizes 10 pieces Great for cutting circles