Spiral Point Tap, Thread Size 3/8 In.-16, UNC, UNJC, Overall Length 6 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 1 1/4 in, 75 Percent Thread Drill Size 0.3125 in, Thread Limit H3, Class of Fit 2B, 3B, Number of Flutes 3