Milwaukee 49-66-6144 SHOCKWAVE™ Impact Duty 3/8′ Drive 21MM Standard 6 Point Socket

Engineered for strength and reliability, this 21MM standard socket from Milwaukee Tool’s SHOCKWAVE™ Impact Duty line is crafted from forged impact steel, ensuring exceptional durability in high-torque applications. The 6-point design allows for better grip on fasteners, reducing the risk of rounding, while the non-slip hex geometry enhances performance with 3/8″ drive impact wrenches, drivers, and ratchets. For added convenience, this socket features a dual hole design and stamped diameter markings filled with ink for visibility even after extensive use. Meeting ASME industry standards, it’s a professional-grade tool backed by Milwaukee’s Lifetime Guarantee, providing peace of mind for those demanding reliability and performance in every job.