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
• High-visibility laser etched markings provide quick size identification

• Weight (Catalog) - 0.450
• Warranty - Full Lifetime
• Drive Tang Size - 1/4 in
• Knurled - No
• Family Name - Bolt Biter™
• Size - 8mm [5/16 in] 10mm 12mm 13mm 14mm [-9/16 in]
• Included Storage - Injection Molded Case
• Set Size Range Max - 14mm [-9/16 in]
• Locking - No
• Magnetic - Yes
• Set Size Range Min - 8mm [5/16 in]
• Type - Wrench Insert
• UPC - 099575861918
• Prop 65 - WARNING: This product contains or produces a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.
• Material - Chrome-Molybdenum (Cr-Mo)
• Set Piece Count - 5
• Length Format - Standard
• Finish - Manganese Phosphate
• Packaging - Carded
• SAE/Metric/Torx - Metric