Kennedy-Pro: 9mm Deep Socket 3/8" Square Drive Available in a range of metric sizes, these 3/8" square drive, bi-hexagon deep sockets offer superior torque with minimal user exertion. Manufactured from chrome vanadium steel and complete with a chrome-plated, polished mirror finish. With a 12 point side and side drive, the deep socket gives a higher torque than normal sockets, grips worn nuts and will not round off existing nuts. Each socket possesses a ball-retaining groove on each face of the square drive, which ensures a positive fit with accessories. Requires only a one-twelfth turn to engage the next point of the socket. Features and Benefits Manufactured from durable chrome vanadium steel for longevity Polished mirror finish repels dirt and grime Require only one-twelfth of a turn to engage the next part of the socket for quick fastening and loosening of nuts Ball retaining groove ensures a positive fit with accessories and reduces slippage 12 point and side drive allows you to