Three Piece Tap Kit, Tap Thread Size 1/2 In. -13, High Speed Steel, Bright (Uncoated), Thread Standard UNC, Thread Length 15/16 in, Overall Length 3 3/8 in, 75 Percent Thread Drill Size 27/64 in, Thread Limit 2B, Class of Fit 3B, Thread Direction Right Hand, Number of Flutes 4. This item has been restricted from sale in the following state (s): []