Three Piece Tap Kit, Tap Thread Size #2-56, High Speed Steel, Bright (Uncoated), Thread Standard UNC, Thread Length 7/16 in, Overall Length 1 3/4 in, 75 Percent Thread Drill Size 1.73 mm, Thread Limit H2, Class of Fit 2B, Thread Direction Right Hand, Number of Flutes 3. This item has been restricted from sale in the following state (s): []