Five times stronger than the conventional design and tested to 500Nm. Innovative design features a protective metal colour-coded ring that prevents the socket wall spreading. 6pt Socket is sleeved and has an insert to prevent damage to alloy wheels and nuts. Features & Benefits: • Five times stronger than the conventional design and tested to 500Nm. • Innovative design features a protective metal colour-coded ring that prevents the socket wall spreading. • 6pt Socket is sleeved and has an insert to prevent damage to alloy wheels and nuts. • Lifetime guarantee*. • Model No. SX03921 Specifications: Model No SX03921 Brand: Premier Drive: 1/2"Sq Nett Weight: 0.25kg Size: 21mm