Milwaukee SHOCKWAVE™ Impact Duty™ 3/8" Drive 3" Socket Extension provides exceptional access to hard-to-reach spaces while delivering extreme impact durability, making it i for high torque applications. Designed for convenience, this socket extension features a dual-hole design and ring groove that simplify socket attachment and removal. It also includes long-lasting stamped size markings, allowing for quick and easy socket identification. This combination of durability and user-friendly design ensures reliable performance in demanding work environments. Model Number: 49-66-6703