Spiral Flute Tap, Thread Size 1/2 In.-13, UNC, Overall Length 3 3/8 in, Vanadium High Speed Steel, Black Oxide, Thread Length 39/64 in, 75 Percent Thread Drill Size 0.4219, Thread Limit H3, Class of Fit 2B-3B, Thread Direction Right Hand, Number of Flutes 3








