3/8 - 16 Size x 1.2500" (1-1/4) Thread Length x H3 Limit x 0.3810" Shank DIA, High Speed Steel - 4 FL - TiN Coated
3/8 - 16 Size x 1.2500" (1-1/4) Thread Length x H3 Limit x 0.3810" Shank DIA, High Speed Steel Hand Tap - Left Hand, 4 Flutes, TiN Coated