Chrome Molybdenum steel impact sockets with 1/2"Sq drive. Phosphate finish for added corrosion resistance. Suitable for use with any impact tool. Supplied in storage case. Features: One of a comprehensive range of Premier Hand Tools, suitable for daily professional use Chrome Molybdenum steel impact sockets with 1/2"Sq drive Phosphate finish for added corrosion resistance Suitable for use with any impact tool Sizes: M8, M10, M12, M14, M16, M18 Supplied in storage case Lifetime guarantee* Specifications: Guarantee:Life Model Number: AK5608