General description A set of 3 impact sockets designed for the safe removal of alloy wheel nuts. These sockets feature 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 Sizes: 17mm, 19mm, 21mm Length: 86mm Drive: 1/2""D Material: Chrome molybdenum with Polycarbonate (PC) sleeves Other information Supplied in a robust blow mould carry case for safe storage.