• Bi-directional design for removing or tightening damaged fasteners
• Tapered entry easily seats on a damaged fastener
• Dual sized sockets designed to work with both SAE and metric fasteners
• Torsion zone offers up to 50x longer life in high torque impact applications
• Chrome molybdenum alloy steel (Cr-Mo) for exceptional strength and long lasting durability
• High-visibility laser etched markings provide quick size identification
• Black oxide finish to resist corrosion
• Minus-size sockets fit a wider range of damaged fasteners
• Included pivoting GEARCASE insert rails for storage and organization