The tip of the drill end is designed to start fast, with minimal walking, and the tip of the extractor end is serrated for increased torque to easily remove even the toughest bolts and screws.
Irwin screw extractor bits
September 25, 2014
Irwin’s Impact Performance Series’ Screw-Grip Extractors feature DoubleLok technology, ensuring that both ends lock into impact drivers and quick-change chucks. A single bit drills and extracts to easily remove stripped or damaged screws and small bolts in three steps: drill, flip bit and extract.