GREENFIELD THREADING 174533 Tap Set, 5/16"-24, Bottoming, Plug, Taper, 4
$28.75
Tap Set, Tap Thread Size 5/16 In.-24, High Speed Steel, TiN, Thread Standard UNF, Thread Length 11/16 in, Overall Length 2 23/32 in, Thread Limit 2B, Class of Fit 2B, Thread Direction Right Hand, Number of Flutes 4