Spiral Flute Tap, Thread Size #10-32, UNF, Overall Length 2 3/4 in, High Speed Steel, Black Oxide, Thread Length 1/4 in, 75 Percent Thread Drill Size #21, Thread Limit 2B, Class of Fit 2B, Thread Direction Right Hand, Number of Flutes 3.
45 mm, Thread Limit 2B, Class of Fit 2B, Thread Direction Right Hand, Number of Flutes 3.Spiral Flute Tap, Thread Size #12-24, UNC, Overall Length 3 1/8 in, High Speed Steel, TiN, Thread Length 3/8 in, 75 Percent Thread Drill Size 4.