21mm Alloy Wheel ULTRA POWER Impact Socket Set - 500Nm & Sleeved - 1/2" Drive Overview: 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: 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*. Specification: Drive - 1/2"Sq Net Weight - 0.25kg Size - 21mm Further Information: We sell a wide variety of tools & workshop equipment for both the DIY and Professional markets. With well over 10,000 lines of equipment suiting all jobs big or small, our online store has it all. If you can’t quite find what you are looking for, please feel free to contact us