3/4in Dr. 21mm Impact Socket

Genius Tools Impact Socket 21mm 3/4 Inch Drive Chrome Molybdenum Durable Heavy-Duty - 645221 Impact Socket This 3/4in drive 21mm impact socket is built for high-torque fastening and removal where strength matters. The socket's 51mm (2.01in) overall length offers a compact profile while maintaining practical reach for service work. Made from Chromium Molybdenum Alloy Steel, it's designed for durability and corrosion resistance in demanding environments. Clear, permanently stamped size markings support fast identification and better tool organization in busy workflows. Key Benefits 3/4in drive, 21mm impact socket suited for high-torque applications. 51mm (2.01in) overall length balances access, control, and stability. Chromium Molybdenum Alloy Steel construction supports strength and long service life. Anti-corrosive properties help maintain performance in harsh shop environments. Oil-quenched heat treatment improves exterior toughness and inner core strength. Matte black oxide coating adds durability and helps protect against wear. Permanently stamped size marking speeds identification and tool organization. Built to meet or exceed ANSI standards, this impact socket is designed for professional technicians and sustained heavy use.