12 Pcs, Qualtech 7/16"-20 HSS Machine and Fraction Hand Bottoming Tap, DWT54663
$69.68
Size: 7/16"-20; Material: High Speed Steel; Finish: Uncoated (Bright); Style: Bottoming; Cutting Direction: Right Hand HSS Hand Tap, Bottoming, Size: 7/16"-20, Decimal Equivilant .4375-20, Limit H3, Number of Flutes 4