Spiral Point Tap, Thread Size 3/8 In.-24, UNF, UNJF, Overall Length 2 15/16 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 1 1/4 in, 75 Percent Thread Drill Size 8.50 mm, Thread Limit H3, Class of Fit 6H, Number of Flutes 3