Straight Flute Tap, Thread Size 1/2 In. -13, UNC, Semi-Bottoming, Overall Length 3.38 in, Cobalt, Black Oxide/Nitride, Right Hand, Thread Length 0.94 in, 75 Percent Thread Drill Size 27/64 in, Thread Limit H5, Class of Fit 2B-3B. This item has been restricted from sale in the following state (s): []