HHIP 2007-0105 1/4 x 3/8 HSS 2 Flute Solid Cap Screw Counterbore
1/4 X 3/8" Shank High Speed Steel 2 Flute Solid Cap Screw Counterbore ~ For socket head cap screws. ~ Straight shank. ~ Pilot size is 1/4". ~ Cutting diameter is 13/32". ~ Overall length is 3-5/8".