3/4in Dr. 21mm Hex Head Driver

Genius Tools Hex Head Driver 21mm Size 3/4 Inch Drive Heavy-Duty Professional Quality - 648821 Impact Hex Bit Socket This 21mm hex impact bit socket is built for 3/4in drive applications where strength and consistent fit matter. With an overall length of 88mm (3.46 inches), it provides practical reach while maintaining control for professional technicians. Manufactured from Chromium Molybdenum Alloy Steel, it combines high strength with anti-corrosive properties for long service life. Permanent size stamping supports fast identification in busy toolboxes and shop environments. Key Benefits 21mm hex impact bit socket designed for precise engagement and strength. 3/4in drive size fits compatible impact tools and heavy-duty setups. 88mm (3.46in) overall length balances access, leverage, and control. Chromium Molybdenum Alloy Steel construction for high strength and durability. Heat-treated for strength, with black oxide coating for rigorous professional use. Permanently stamped size marking for quick identification and organization. SKU 648821 is engineered for technicians who need an impact-rated hex bit socket that holds up under repeated heavy use. The material choice, heat treatment, and black oxide finish support durability, while stamped markings keep sizing clear during daily service work.