Taps & Die Sizes Included. Fractional Sizes - 64 PC. Set - #4 - 40 to 1”. Includes Coarse & Fine Threads. Consisting of the following sizes: 1 each Tap and 1 each Round Die: #4-40, #6-32, #10-24, #12-24, 1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13, #10-32, 1/4-28, 5/16-24, 3/8-24, 7/16-20, 1/2-20, 1/8 NPT, 3mmx0.50, 4mmx0.70, 5mm x0.80, 6mmx1.01, 7mmx1.02, 8mmx1.25, 9mmx1.25, 10mmx1.00, 10mmx1.50, 12mmx1.75. Outside diameter of round dies: 1/4" to 3/8" - 1” O.D. 7/16" to 5/8" - 1-1/2” O.D. 3/4" to 1" - 2” O.D. Also Includes: 2 Straight Tap Wrenches, and 3 DieStocks (1”, 1-1/2” and 2” O.D.)