The Snap-On 1/4″ Drive 5/16″ 8PT Chrome Double Square Socket TM410 is a high-quality hand tool designed for automotive use. This chrome-finished socket features a unique double square design and is the perfect size for 5/16 inch nuts and bolts. With the Snap-On brand known for reliability and durability, this tool is sure to be a valuable addition to any mechanic’s toolbox.