Spiral Point Tap, Thread Size 5/16 In. -24, UNF, Overall Length 6 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 1 1/8 in, 75 Percent Thread Drill Size I, Thread Limit H3, Class of Fit 2B, Number of Flutes 2. This item has been restricted from sale in the following state (s): []