Tungsten tap and die set in metal case contains: UNC Taps (2 each): #4x40, #6x32, #8x32, #10x24, #12x24, 1/4"x20, 5/16"x18, 3/8"x16, 7/16"x14, 1/2"x13, 9/16"x12, 5/8"x11, 3/4"x10 UNF Taps (2 each): #10x32, 1/4"x28, 5/16"x24, 3/8"x24, 7/16"x20, 1/2"x20, 9/16x18, 5/8"x18, 3/4"x16 UNS Taps (2 each): 1/4"x24, 1/4"x32 Metric Taps (2 each): M6x1.0, M8x1.25, M10x1.5, M10x1.0, M11x1.5, M12x1.25, M12x1.75, M14x1.25, M18x1.5 35 corresponding dies 2 adjustable tap holders 1 T-handle tap holder 2 die holders