Milwaukee SHOCKWAVE™ Impact Duty™ 3/8" 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 long-lasting stamped size markings that allow for quick and easy identification. Its non-slip hex geometry helps prevent fastener rounding, ensuring a secure grip during use. The socket also includes a dual-hole design and ring groove, making attachment and removal more convenient. Optimized for use with 3/8-inch drive impact wrenches, drivers, ratchets, and adapters, this socket is a reliable choice for demanding tasks. Model Number: 49-66-6162