This Craftsman socket set includes 48 pieces of 1/2 inch drive impact sockets with a black oxide surface finish. The set comes with a carrying case and is manufactured by Apex Tool Group under the brand name Craftsman. The sockets have a 6 point drive type and are compatible with both SAE and Metric systems of measurement. The set is ideal for automotive tools and supplies and is a perfect addition to any hand tool collection. The lifetime warranty ensures that the sockets are built to last and are a reliable tool for any DIY or professional project.