Straight Flute Tap, Thread Size 9/16 In. -18, UNF, Taper, Overall Length 3 9/16 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 1 in, 75 Percent Thread Drill Size 12.90 mm, Thread Limit H3, Class of Fit 2B. This item has been restricted from sale in the following state (s): []