Spiral Point Tap, Thread Size 5/16 In. -24, UNF, Overall Length 3 17/32 in, HSS-E, Hard Lube, Right Hand, Thread Length 1 3/8 in, 75 Percent Thread Drill Size I, Thread Limit 2B, Class of Fit 2B, Number of Flutes 3. This item has been restricted from sale in the following state (s): []