Weldon 97512-00-W Solid Pilot Counterbore: 1/2" Dia, 11/32" Pilot, 2 Flutes
Solid Pilot Counterbore: 1/2" Dia, 11/32" Pilot, 2 Flutes 5/16" Socket-Head Cap Screw Compatible, 3/8" Shank Dia, 6" OAL, High Speed Steel
$82.55