Tap and Die Set, Number of Pieces 24, Die Shape Hex, Tap Type Straight Flute, Die Material High Speed Steel, Thread Sizes Included 1/2 In.-13, 1/2 In.-20, 1/4 In.-20, 1/4 In.-28, 1/8 In.-27, 3/8 In.-16, 3/8 In.-24, 5/16 In.-18, 5/16 In.-24, 7/16 In.-14, 7/16 In.-20, Die Thread Sizes Included 1/2 In.-13 NC, 1/2 In.-20 NF, 1/4 In.-20 NC, 1/4 In.-28 NF, 1/8 In.-27 NPT, 3/8 In.-16 NC, 3/8 In.-24 NF, 5/16 In.-18 NC, 5/16 In.-24 NF, 7/16 In.-14 NC, 7/16 In.-20 NF, Number Of Taps 11