The Rennsteig double-edged bolt and screw extractors, distributed by KNIPEX Tools LP, represent a new generation of tools to easily remove damaged screws and bolts. With the German quality, reusable double-edged bolt extractors that make eight points of contact and can be used for both left- and right-handed threads, users can get back to work in five easy steps. Each tool includes innovative features like the built-in center punch, four double-edged cutting/gripping edges, non-slip engagement and a large head on the tool for better torque in order to get even the toughest frozen bolts removed. With multiple sizes available, these screw extractors are ideal to have on-hand to be prepared for the unexpected broken bolt or screw.