GreatNeck SK13M 3/8 Inch Drive Socket 6 Point 13MM Great Neck 13mm Metric Socket 3/8" Drive 6 Point Chrome vanadium steel construction Great Neck sockets feature Posi-grip No Slip design. The socket wall design provides superior gripping power without rounding the fastener points. Torque is applied to the walls of the fastener head. GreatNeck SK13M 3/8 Inch Drive Socket 6 Point 13MM Features: 3/8" drive 6 point Ratchet (2542-7626) Metric socket 13mm