The GEARWRENCH Bolt Wrench Inserts are designed with innovative features to grip rounded out, frozen, and damaged fasteners. The revolutionary Bolt Biter gripping design is bi-directional, seats quickly and safely on fasteners, and removes easily from fasteners after use. Bolt Biter Wrench Inserts offer the slimmest solution to remove a damaged fastener in a tight and confined space.

Bi-directional design for removing or tightening damaged fasteners. Tapered entry enables insert to easily seat on a damaged fastener. Designed to work with a static, ratcheting or open-end wrench for ultimate versatility. Hex base compatible with 6 point, 12 point and spline wrenches. Ultra-thin design, 70% thinner than traditional extraction tools. Magnetic retention system for secure fit inside of wrench. Dual sized inserts designed to work with both SAE and Metric fasteners. High-visibility laser etched markings provide quick size identification.