Impact Socket Deep 21MM 1/2″ Drive

This is a 21mm, 1/2″ drive deep impact socket, engineered for high-torque applications. It is designed for use with impact wrenches and drivers in environments requiring robust, reliable fastening and loosening of 21mm fasteners.

What You Get

• 21mm socket size
• 1/2″ drive compatibility
• Deep well design
• Chrome Vanadium steel construction
• Drop-forged manufacturing
• Six-point (hexagonal) internal profile
• Hardened and tempered for strength
• Phosphate Black finish for corrosion resistance and reduced glare

Built For

This impact socket is built for professional mechanics, industrial maintenance technicians, construction workers, and heavy equipment operators. It is suitable for automotive repair, machinery assembly and disassembly, structural steel work, and any application where high-impact force is necessary to secure or remove 21mm bolts and nuts. Its deep well design accommodates longer fasteners or those with protruding threads.

Construction

The socket is constructed from Chrome Vanadium steel, a material chosen for its high tensile strength and resistance to wear under impact conditions. It is drop-forged, a manufacturing process that aligns the grain structure of the metal, enhancing its overall strength and durability against the stresses of impact use. The six-point internal geometry provides maximum contact with the fastener head, reducing the risk of rounding off corners under high torque. The hardening and tempering processes further increase its resilience to deformation and fracture. A phosphate black finish is applied, providing a protective layer against rust and corrosion, crucial for tools used in demanding environments, and also serves to differentiate it visually from standard, non-impact hand sockets.