Alvord Polk 03017 Solid Pilot Counterbore: 0.414" Dia, 0.281" Pilot
Solid Pilot Counterbore: 0.414" Dia, 0.281" Pilot 1/4" Socket-Head Cap Screw Compatible, 5/16" Shank Dia, 5-5/8" OAL, High Speed Steel (MOQ=1, Pkg Qty=1)
Not Cancelable or Returnable!