Alvord Polk 03085 Solid Pilot Counterbore: 0.6496" Dia, 0.4134" Pilot
Solid Pilot Counterbore: 0.6496" Dia, 0.4134" Pilot 0.3937" Socket-Head Cap Screw Compatible, 1/2" Shank Dia, 7" OAL, High Speed Steel (MOQ=1, Pkg Qty=1)
Not Cancelable or Returnable!