The Draper Expert 21mm 1/2″ Drive Hi Torq Impact Socket handles one of the most popular wheel nut sizes in modern automotive applications. The 21mm dimension is standard equipment across numerous vehicle manufacturers, particularly in the Asian and European markets, making this socket essential for professional workshops, mobile mechanics, and serious home enthusiasts. Constructed from forged chrome vanadium steel, this impact socket undergoes hardening and tempering treatments to ensure it can withstand the repetitive high-torque demands of wheel servicing without losing dimensional accuracy. The 6-point hexagon design maximises engagement with fastener flats, reducing wear on both the socket and the wheel nuts themselves whilst preventing rounding during removal of stubborn or corroded fixings. Chemical blackening provides ongoing corrosion protection, crucial for a socket regularly exposed to harsh roadside and workshop environments. The 1/2″ square drive ensures compatibility with air-powered, electric, and manual impact wrenches, offering the versatility and performance demanded by professionals tackling diverse vehicle servicing requirements. Features and Benefits: • Chrome vanadium steel hardened tempered and chemically blacked for corrosion protection Contents: • 1 x Draper HI-TORQ® Impact Socket, 1/2″ Sq. Dr., 21mm