12 Pcs, Qualtech 5/16"-18 HSS Nut Tap, DWTNT5/16-18
$358.59
Size: 5/16"-18; Material: High Speed Steel; Finish: Uncoated (Bright); Style: Nut; Cutting Direction: Right Hand HSS, Nut and Spiral Pointed Pulley Tap, Size: 5/1618