Spiral Point Tap, #8-32, Plug, UNC, 3 Flutes, Oxide
40 mm, Thread Limit H7, Class of Fit JIS 2, Number of Flutes 3.Spiral Point Tap, Thread Size #8-32, UNC, Overall Length 2 3/32 in, HSS-E, Black Oxide, Right Hand, Thread Length 5/16 in, 75 Percent Thread Drill Size 3.