4PCS Damaged Screw Remover and Extractor Set by EasyOut - Stripped Screw Remover.APPLY TO ALL DRILLS : 4 pieces screw extractors work with any drill and all the screw size or bolt (3 12mm), These extractor tools are used to reverse the damaged screw counterclockwise until it is released POWERFUL : Striped screw extractor removes even the most stubborn stripped, damaged, embedded, rusted and painted over screws and bolts EASY TO USE : Just two simple steps will get the job done Use a suitable size screw remover to drill a hole with