GEARWRENCH Bolt Biter SAE/Metric Wrench Insert Set (16-Piece)

The GEARWRENCH Bolt Biter 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.