Tap and Die Set, Number of Pieces 42, Die Shape Hex, Die Material High Speed Steel, Thread Sizes Included Dies:#4-40, #6-32, #8-32, #10-24, #10-32, #12-24, 1/8 in -27, 1/4 in -20, 1/4 in -28, 5/16 in -18, 5/16 in -24, 3/8 in -16, 3/8 in -24, 7/16 in...