Heat treated, drop-forged Chrome Vanadium 6142 steel sockets and accessories with a fully polished mirror finish. Features specially machined flutes in the walls of the socket which enable use on up to 85% rounded fasteners. This not only provides added strength but also prevents damage to worn or rusted fixings. Covers sizes from 4 to 14mm in both standard and deep. Features 48-tooth gear-to-gear flip reverse comfort grip ratchet wrench with push-button quick release, extension bars, spinner handle, universal joint and 3/8"Sq Drive - 1/4"Sq Drive Male Adaptor. Includes contents map displayed inside the lid. Supplied in metal storage case.