Deep 13mm single Hex 1/2" square drive socket manufactured from durable chrome vanadium steel with a polished finish. Ideal for car engine maintenance and anywhere that regular sockets are too short for access. The six-sided socket head drives from the flats to provide more torque, useful for freeing seized nuts and bolts, whilst avoiding the risk of rounding. The socket has slightly convex internal faces and drilled out corners, for a solid grip, even on damaged fastener heads.