The Genius 3/8 Drive 21 Piece Hex Head Socket Set is a high-quality tool set designed for automotive applications. The set includes various sizes of sockets with a metric system of measurement, each featuring a chrome finish for durability. The 3/8 inch drive size ensures a precise fit and the hex/allen drive type allows for efficient tightening and loosening of nuts and bolts. This set is a valuable addition to any mechanic’s tool collection, providing the necessary tools for a wide range of automotive repair and maintenance tasks.