Sealey 1/2" Drive Hexagon WallDrive Socket Metric

The 21mm socket is commonly encountered in wheel nut applications across many vehicle types, particularly European and Asian manufacturers. This size proves essential for tyre services, roadside assistance and general automotive maintenance operations. Manufactured from cold-forged Chrome Vanadium steel with mirror-polished chrome finish, this socket delivers the durability required for frequent wheel changing operations. The WallDrive® configuration ensures secure wheel nut engagement, minimising damage risk, whilst the knurled ring provides confident grip.