Milwaukee SHOCKWAVE™ Impact Duty™ 1/2" Drive 6" Socket Extension is engineered to provide superior access to tight or hard-to-reach areas, making your work more efficient and precise. Crafted from high-strength forged steel, this extension delivers exceptional impact durability, even under high torque conditions. Its size is laser etched for quick and easy identification on the job site, saving you time and effort. The dual-hole design combined with a ring groove simplifies socket attachment and removal, enhancing convenience during use. Designed specifically for use with Impact Sockets, its ball detent design ensures superior socket retention, giving you confidence in every task. Model Number: 49-66-6707