• 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
• Get (1) SET BOLT BITER SCREW EXTRACTOR 4 PC