7/16-14 Size x 1.4375" (1-7/16) Thread Length x H3 Limit x 0.3230" Shank DIA, High Speed Steel - 4 FL - Uncoated
7/16-14 Size x 1.4375" (1-7/16) Thread Length x H3 Limit x 0.3230" Shank DIA, High Speed Steel Hand Tap Sets - Left Hand, 4 Flutes, Uncoated