Tap and Die Set Number of Pieces 16 Die Shape Round Fixed Tap Type Hand Die Material High Speed Steel Thread Sizes Included 1/2 In.-20 1/4 In.-28 3/4 In.-16 3/8 In.-24 5/16 In.-24 5/8 In.-18 7/16 In.-20 Die Thread Sizes Included 1/2 In.-20 1/4 In.-28 3/4 In.-16 3/8 In.-24 5/16 In.-24 5/8 In.-18 7/16 In.-20 Number Of Taps 7 Thread Standard UNF Tap Shank Standard ANSI