Straight Flute Tap, Thread Size 1/2 In. -20, UNF, Bottoming, Overall Length 3.37 in, Vanadium High Speed Steel, Nitride, Right Hand, Thread Length 0.92 in, 75 Percent Thread Drill Size 11.40 mm, Thread Limit H3, Class of Fit 2B-3B. This item has been restricted from sale in the following state (s): []