Spiral Point Tap, Thread Size #4-40, UNC, Overall Length 2 13/64 in, Cobalt, Black Oxide, Right Hand, Thread Length 43/64 in, 75 Percent Thread Drill Size 2.20 mm, Thread Limit 2B, Class of Fit 2B, Number of Flutes 3. This item has been restricted from sale in the following state (s): []