GREENFIELD THREADING 174510 Tap Set, #12-24, Bottoming, Plug, Taper, 4 Flutes,
$21.25
Tap Set, Tap Thread Size #12-24, High Speed Steel, TiN, Thread Standard UNC, Thread Length 1/2 in, Overall Length 2 3/8 in, Thread Limit 2B, Class of Fit 3B, Thread Direction Right Hand, Number of Flutes 4