Spiral Flute Tap, Thread Size 1/2 In. -20, UNF, Overall Length 3 3/8 in, Powdered Metal, V, Thread Length 59/64 in, 75 Percent Thread Drill Size 11.40 mm, Thread Limit H3, Class of Fit 2B-3B, Thread Direction Right Hand, Number of Flutes 3. This item has been restricted from sale in the following state (s): []