Three Piece Tap Kit, Tap Thread Size #10-32, High Speed Steel, Bright (Uncoated), Thread Standard UNF, Thread Length 1/2 in, Overall Length 2 3/8 in, 75 Percent Thread Drill Size #21, Thread Limit 2B, Class of Fit 2B, Thread Direction Right Hand, Number of Flutes 4. This item has been restricted from sale in the following state (s): []