Spiral Flute Tap, Thread Size 3/8 In.-24, UNF, Overall Length 2 15/16 in, Vanadium High Speed Steel, Bright (Uncoated), Thread Length 1/2 in, 75 Percent Thread Drill Size 8.50, Thread Limit H7, Class of Fit 2B-3B, Thread Direction Right Hand, Number of Flutes 3