Genius Tools Impact Socket 21mm 1/2 Inch Drive CR-Mo Steel Heavy Duty - 444021

Genius Tools Impact Socket 21mm 1/2 Inch Drive CR-Mo Steel Heavy Duty - 444021 Impact Socket

This 1/2" drive 21mm impact socket is built for high-torque fastening where strength, fit, and long-term durability matter. The 40mm (1.57") overall length keeps the profile compact for controlled access while maintaining the robustness expected from an impact-rated socket.

Constructed from Chromium Molybdenum Alloy Steel (CR-Mo), it is engineered for high strength and durability with anti-corrosive properties. A matte black oxide finish and oil-quenched heat treatment help deliver a tough exterior and a strong inner core for sustained professional use.

Key Benefits

• 1/2" drive, 21mm size supports common impact tool fastening applications.
• 40mm overall length fits compactly while maintaining an impact-rated profile.
• Chromium Molybdenum Alloy Steel construction delivers strength and long-term durability.
• Anti-corrosive material properties help resist harsh shop and jobsite conditions.
• Oil-quenched heat treatment improves exterior toughness and inner core strength.
• Matte black oxide coating provides a durable finish for demanding professional use.
• Permanently stamped size markings speed identification and improve tool organization.

SKU: 444021. Designed and made for professional technicians, this impact socket meets or exceeds ANSI standards and is backed by the Genius Tools Limited Lifetime Warranty against manufacturer defects. It is a dependable choice for repeated heavy use where consistent performance and easy size identification are essential.