General description A 21mm impact socket designed for the safe removal of alloy wheel nuts. It features an internal plastic buffer to protect the wheel nut and an external plastic sleeve that spins separately from the socket, preventing damage to the wheel finish. Technical specifications Size: 21mm x 86mm Type: 6pt x 1/2""D Material: Chrome molybdenum with Polycarbonate (PC) sleeves Compatibility and accessories Other sizes available: 8594 (17mm) & 8595 (19mm) Also available as part of a 3pc set, Part No. 8593 Usage The torsion design of the socket provides increased strength and durability while reducing weight, making it ideal for safely removing alloy wheel nuts without damaging them.