12 Pcs, Qualtech 5/16"-18 Carbon Steel Bottoming Hand Tap, DWTB5/16-18
$27.33
Size: 5/16"-18; Material: Carbon Steel; Finish: Uncoated (Bright); Style: Bottoming; Cutting Direction: Right Hand Carbon Steel Hand Tap, Bottoming, 5/16"-18, Number of Flutes 4, Dec Equivilant 0.3125-18