1/2in Dr. 21mm Swivel Deep Impact Socket

Genius Tools Impact Socket 21mm Deep Swivel 1/2 Inch Drive Heavy Duty - 480021MD Professional Impact Socket This 21mm deep swivel impact socket is built for 1/2 inch drive impact applications where access and articulation matter. The swivel design helps maintain engagement in tight, hard-to-reach areas, while the deep profile supports work on longer fasteners and recessed hardware. Manufactured from chromium-vanadium steel alloy and finished with a matte black oxide coating, it combines durability with corrosion resistance. Heat treatment through oil quenching supports a tough exterior and strong inner core for long-term professional service. SKU: 480021MD. Key Benefits 1/2 inch drive, 21mm deep swivel impact socket for angled access. 97mm overall length provides reach without sacrificing control in use. Chromium-vanadium steel alloy construction supports strength, durability, and corrosion resistance. Oil-quenched heat treatment enhances exterior toughness and inner core strength. Matte black oxide coating helps protect the socket under heavy-duty conditions. Stamped size markings enable fast identification and consistent tool organization. Designed for professional technicians and demanding environments, this socket delivers a full range of motion while maintaining impact-ready strength. The stamped sizing supports quick selection on the job, and the durable construction is intended to stand up to repeated heavy use over time.