The tools in the Anglo American Tools Rennsteig 5-pc Dual Edge Screw Extractor Set unscrew ruined screws and bolts without damaging threads. This unique design allows both left- and right-handed turning. Comes with an integrated center punch pin for precision work. The extractor is driven into the bore hole for a safe and secure hold, and offers double-edged engagement with the screw for a non-slip grip. Constructed of hardened chrome vanadium steel construction for longer tool life. Made in Germany.