– 1/2-Inch drive – Made from heat treated chrome vanadium steel with chrome finish for extra durability and corrosion-resistant. – The sleeve can be turned to any direction freely with the 90-degree swivel head that locks onto socket and drive for fast and easy use, and to make leverages turn in any direction – Spring-loaded detent balls securely latch onto drive tool, preventing it from being dropped. – Suitable for all the hexagonal side handle four square hole groove – Turns all bits into U-Joint Drivers