This is a professional matt chromed 1/4in square drive socket from Teng Tools. It is produced in accordance with ISO 9000 and AS954 specifications, offering increased torque and a reduced risk of rounding fasteners. The hexagonal socket features a relatively short depth and a stepped collar on the shank. Its size is 4mm, and the overall length is 24mm. The product weighs 0.02 pounds. It is a 6-point regular hexagon socket.