Tap and Die Set Number of Pieces 39 Die Shape Round Tap Type Straight Flute Die Material Carbon Steel Thread Sizes Included #10-24 #10-32 #12-24 #4-40 #6-32 #8-32 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