This impact socket set contains 39 pieces of 6 point, 3/8in. square drive sockets. Manufactured from chrome molybdenum steel, each socket has a black oxide finish and laser etched markings to inform the user of its size. The set is supplied in a robust, black impact resistant plastic case with a moulded handle. Features and Benefits Manufactured from high quality chrome molybdenum steel for overall durability Black oxidised finish further protects the product against corrosion as well as wear and tear Permanent laser etched markings denoting the size of the socket allows for ease of selecting the correct component for your application Supplied in a robust plastic case for ease of organisation, storage and transportation of your tools Contents Standard length metric: 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 and 22mm Standard length imperial: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16 and 3/4 inch Deep length metric: 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18,