Straight Flute Hand Tap , 5/8-18 , Bottoming , 4 Flutes, UNF
Straight Flute Tap, Thread Size 5/8 In.50 mm, Thread Limit H3, Class of Fit 2B.-18, UNF, Bottoming, Overall Length 3 25/32 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 1 1/16 in, 75 Percent Thread Drill Size 14.