Genius Tools Deep Hand Socket 21mm 1/2 Inch Drive High-Strength Chrome Vanadium Steel - 427821

Genius Tools Deep Hand Socket 21mm 1/2 Inch Drive High-Strength Chrome Vanadium Steel - 427821 Deep Socket

This 21mm deep hand socket is built for consistent fit and reliable torque on 6-point fasteners. The deep profile and 1/2" drive size help reach recessed hardware while staying compatible with common ratchets and drive tools.

Manufactured from chromium-vanadium steel alloy, it combines high strength with anti-corrosive properties for demanding shop conditions. A chrome polished finish supports long-term corrosion resistance, while permanently stamped size markings improve identification and tool organization.

Key Benefits

• 21mm 6-point deep socket profile helps reduce fastener rounding and slippage.
• 1/2" drive size fits standard ratchets, extensions, and torque tools.
• 78mm (3.07") overall length reaches recessed nuts and bolts more easily.
• Chromium-vanadium steel alloy delivers high strength with anti-corrosive properties.
• Chrome polished finish provides a tough surface that resists corrosion.
• Permanently stamped size markings support fast identification and better tool organization.
• Meets or exceeds ANSI standards and includes a limited lifetime warranty.

Designed for professional technicians and heavy-use environments, this deep socket balances durability, fit, and identification features in one straightforward tool. Its corrosion-resistant construction and clear size stamping make it dependable in daily service work while maintaining compatibility with 1/2" drive setups.