High quality 6pcs Screw Extractors Removers Center Drill Bits Set for Broken Damaged Screws Bolts Studs

1. Black oxidation with whole body heat treatment, rustproof and sturdy, ensure high hardness and durability.

2. Use a drill to drill a deep hole in the screw head, choose a drill bit smaller than the damaged screw.

3. Rustproof black tip finishes.

4. Reverse thread design to embed into screw or bolt for easy removal.

5. Remove sunken,peeled,rusted,cracked or corroded screws and bolts,remove broken fasteners.