This Mac Tools 3/8 drive metric swivel impact socket set includes 8 pieces, sizes 10,11, 12, 13, 15,16,19,22. The sockets are designed with a 6 point drive type and are made in the United States with a surface finish of IMPACT. The set comes with a socket type of Impact and is perfect for automotive tools & supplies as well as hand tools. This set is brand new and has never been used before. Get your hands on this high-quality Mac Tools socket set today!