1/2-20 Size x 0.6400" (41/64) Thread Length x H5 Limit x 0.3670" Shank DIA, High Vanadium Powdered Metal - 3 FL - AlTiN Coated
1/2-20 Size x 0.6400" (41/64) Thread Length x H5 Limit x 0.3670" Shank DIA, High Vanadium Powdered Metal High Performance - Spiral Flute Semi-Bottoming Tap, 3 Flutes, AlTiN Coated