workpro 1/2-inch drive impact extension bar sets, 3 piece-3, 6, 8 inch socket extension, hardened and heat treated cr-mo stee

Premium CR-MO: WORKPRO Impact Extension Bar Sets are made from premium chrome molybdenum steel by heat treatment for high hardness and good toughness, the surface is coated with Manganese Phosphate to prevent rust and corrosion for durability, and Laser-etched brand and size words are easy to read. | Different and Clear Sizes: This 1/2" extension set includes three commonly used sizes: 3, 6, and 8-inch, which can reach into the narrow range and meet your needs in different usage scenarios, making your work easier and avoiding injury. | High Compatibility: whether it is electric, pneumatic or hand wrench, as long as it meets 1/2 drive, this socket extension set can be compatible with it to meet your different needs in automotive, chemical and assembly fields. | Comfortable & Ergonomic Design: The drive end has a multi-purpose pinhole to ensure the extension bar can be firmly seated on the drive handle. The end of the impact driver extension has a ball stud that forms a locking mechanism that prevents the extension bar from falling, increasing its stability and safety. | Access Hard-to-Reach Fasteners with Ease: These impact extension bars are used with different impact wrenches to increase their length, and access to hard-to-reach fasteners, making you're easily taking all the fuss out of auto repair tasks.

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