Spiral Point Tap, Thread Size 7/16 In. -20, UNF, Overall Length 3 1/8 in, High Speed Steel, Black Oxide, Right Hand, Thread Length 1 7/16 in, 75 Percent Thread Drill Size 9.95 mm, Thread Limit H11, Class of Fit 1B, Number of Flutes 3. This item has been restricted from sale in the following state (s): []