OSG 2911400 Spiral Flute Tap, Modified Bottoming 3 Flutes
Spiral Flute Tap, Thread Size #4-40, UNC, Overall Length 1 27/32 in, High Speed Steel, Bright (Uncoated), Thread Length 3/16 in, 75 Percent Thread Drill Size 2.20, Thread Limit H3, Thread Direction Right Hand, Number of Flutes 3