Capri Tools 20009 1/4-Inch Stamp and Letter Punch Set, 36-Piece 36 pieces including numbers (0-9), letters (A-Z),and the & symbol Symbols are all 1/4" Black Oxide gives adapters increased corrosion resistance Hardened steel makes for strength, toughness, and resistance to wear and fatigue Stamp into steel and other metals, wood,leather, vinyl and plastic 36 pieces including numbers (0-9), letters (A-Z),and the & symbol Symbols are all 1/4" Black Oxide gives adapters increased corrosion resistance Hardened steel makes for strength, toughness and resistance to wear and fatigue Stamp into steel and other metals, wood, leather, vinyl and plastic