Sealey Impact Socket Set 13pc 1/2"Sq Drive Metric AK5613MManufactured from Chrome Vanadium steel, hardened, tempered and with a phosphate finish for added corrosion resistance. Standard depth WallDrive sockets allow a transfer of up to 30% more torque to the fixing. One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. Standard depth 6 point WallDrive sockets allows a transfer of up to 30% more torque to the fixing. Specifications Detail Manufactured from Chrome Vanadium