Alvord Polk 03031 Solid Pilot Counterbore: 0.961" Dia, 0.64" Pilot
Solid Pilot Counterbore: 0.961" Dia, 0.64" Pilot 5/8" Socket-Head Cap Screw Compatible, 5/8" Shank Dia, 7-5/8" OAL, High Speed Steel
$178.47