Amazon.com has GEARWRENCH 4 Pc. 3/8" Drive Impact Extension Set 3", 6", 10" & 15" – 84926N on sale for $31.45.
- Made From Chrome Molybdenum Alloy Steel (Cr-Mo) for Exceptional Strength and Durability
- Flex socket design provides more access to fasteners in tight confines
- Off-corner loading design for reduced fastener rounding
- Manganese phosphate finish to resist corrosion
- High-visibility laser etched markings provide quick size identification
- Meets or exceeds ASME specifications
- Includes tray for storage and organization