GearWrench 84653N 1/2" Drive Impact Locking Extension - 31"
- Chrome molybdenum alloy steel (Cr-Mo) for exceptional strength and durability
- Pin hole can be used with pin and o-ring for secure socket retention
- Locking mechanism with sliding collar securely attaches socket to extension
- Manganese phosphate finish to resist corrosion
- High-visibility laser etched markings provide quick size identification
- Meets or exceeds ASME specifications