5/16-18 Size x 1.1250" (1-1/8) Thread Length x H3 Limit x 0.2400" Shank DIA, High Speed Steel - 2 FL - Uncoated
5/16-18 Size x 1.1250" (1-1/8) Thread Length x H3 Limit x 0.2400" Shank DIA, High Speed Steel Extension Tap - Spiral Point Plug, 2 Flutes, Uncoated