The Dormer M900 Screw Extractors can be used counter-clockwise to remove broken right-handed bolts & screws from threaded holes without damaging threads. It’s necessary to drill a guide hole of proper size before using the extractor.Select Option M12-M14M14-M20M20-M30M30-M42M42-M45M45-M50M5-M6M6-M8M8-M12 Add to Basket Quantity