Kennedy-Pro: 15mm Socket 3/8" Square Drive Available in metric sizes, these 3/8" square drive, bi-hexagonal sockets are ideal for applications in which high torque is required. With a 12 point system and side drive design, each socket gives a higher torque than normal sockets, can grip worn nuts and will not round off existing nuts. Every socket possesses a ball-retaining groove on each face of the square drive and requires only a one-twelfth turn to engage the next point of the socket. Constructed from chrome vanadium steel with a highly polished, chrome plated, mirror finish. Features and Benefits Ball retaining groove on each face of the drive ensures a positive fit with accessories 12 point design requires only a twelfth of a turn to engage with the next point of the socket for easy fastening and loosening Will grip even worn nuts and won’t round off existing nuts Side drive design gives a higher torque than standards sockets Available in a range of metric sizes to suit your