5Pcs Countersink Drill Bit Set Hex Shank HSS Woodworking Pilot Screw Holes Set

Specially designed steel counterbore or counterbore guide hole. 5PCS Holes Pilot Shank Bit HSS Woodworking Countersink Set Screw Hex Drill. 5 x Countersink Drills. Just loosen and tighten the fixing screws, you can adjust the drilling length of screws of various lengths.

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