This Matco ADV 10mm Hex Bit Driver Socket is a great addition to your toolkit. The socket has a 3/8" drive size and is designed with a hex/allen drive type. It is made with high-quality chrome surface finish and comes in an open box. This socket is perfect for standard socket type, metric system of measurement, and is a single item set with one piece only. It is manufactured by Matco and has a manufacturer part number of BXYL10MV. This socket set is compatible with a variety of tasks and is ideal for automotive tools and supplies.