Tap and Die Set, Number of Pieces 12, Die Shape Round Fixed, Tap Type Hand, Die Material High Speed Steel, Thread Sizes Included 1/2 In.-20, 1/4 In.-28, 3/8 In.-24, 5/16 In.-24, 7/16 In.-20, Die Thread Sizes Included 1/2 In.-20, 1/4 In.-28, 3/8 In.-24, 5/16 In.-24, 7/16 In.-20, Number Of Taps 5, Thread Standard UNF, Tap Shank Standard ANSI