5/16-18 H5 F eft and piral lute-Right Hand ut LUG DIN Lenght/Ansi Shank HSS-e GT725022 T72_LHSF_DA_CAL GT72 eft and piral lute-Right Hand ut A Inch P HSS-e Taps .318mm .077 ” High-Performance Taps Victory eft-Hand Spiral-Flute HSS-e Taps Through Hole Right