This 21mm socket with 1/2" square drive is designed for larger alloy wheel nuts typically found on SUVs, vans, and performance vehicles. Constructed with Sealey's Ultra Power technology, this socket is five times stronger than conventional designs and has been tested to 500Nm, ensuring it can handle the higher torque requirements of larger vehicles. The innovative design features a protective metal colour-coded ring that prevents the socket wall from spreading under high-impact loads, crucial when working with larger, more tightly torqued wheel nuts. The six-point socket is sleeved with a protective insert to prevent damage to both alloy wheels and nuts, making it ideal for premium SUVs and commercial vehicles where wheel finish must be preserved. Backed by Sealey's lifetime guarantee, this 21mm variant is essential for workshops servicing a diverse range of larger vehicles. Features and Benefits: • 21mm size suits larger vehicles including SUVs, vans and performance cars • Five times stronger than conventional designs, tested to 500Nm • Protective metal colour-coded ring prevents wall spreading under load • Sleeved six-point design with insert protects alloy wheels and nuts • 1/2" square drive for use with impact wrenches and air tools • Lifetime guarantee included Specifications: Brand: Premier Drive: 1/2"Sq Nett Weight: 0.25kg Size: 21mm

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