21mm Spark Plug Socket1/2 Inch Sq DriveChrome Vanadium SteelMagneticMagnetic spark plug socket. Forged Chrome Vanadium steel, hardened, tempered and chrome platedFeatures: Magnetic spark plug socket. Forged Chrome Vanadium steel, hardened, tempered and chrome plated. Specification: Drive -1/2"Sq Length -62mm Net Weight -0.14kg Size(s) -21mm Further Information We sell a wide variety of tools and workshop equipment for both the DIY and Professional markets. Alias: ys01546 Loops 21mm Spark Plug Socket - 1/2 Inch Sq Drive - Chrome Vanadium Steel - Magnetic in Metallics