Spiral Point Tap, Thread Size 1/4 In. -20, UNC, Overall Length 3 5/32 in, Cobalt, Black Oxide, Right Hand, Thread Length 1 17/64 in, 75 Percent Thread Drill Size #7, Thread Limit 2B, Class of Fit 2B, Number of Flutes 3. This item has been restricted from sale in the following state (s): []