GearWrench 84438N 3/8" Drive Impact Locking Extension 33"
- 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