Spiral Flute Tap, Thread Size 1/4 In. -28, UNF, Overall Length 3 9/64 in, High Speed Steel, Black Oxide, Thread Length 25/64 in, 75 Percent Thread Drill Size 5.45, Thread Limit H3, Thread Direction Right Hand, Number of Flutes 3. This item has been restricted from sale in the following state (s): []