Milwaukee SHOCKWAVE™ Impact Duty™ 1/2" Drive 21-mm Deep 6 Point Socket delivers exceptional impact durability designed for high torque applications. Crafted from high-strength forged steel, this socket features a non-slip hex geometry that helps prevent fastener rounding, ensuring a secure grip every time. Its dual-hole design and ring groove provide added convenience for easy socket attachment and removal. Optimized for use with 1/2-inch drive impact wrenches, drivers, ratchets, and adapters, it also includes long-lasting stamped size markings for quick and easy identification, making your work more efficient and reliable. Model Number: 49-66-6282