This Proto 7-piece socket set is perfect for any DIY mechanic. The set includes standard sockets in 5/16in., 1/8in., 7/32in., 5/32in., 3/8in., 3/16in., and 1/4in. sizes, all made with a durable chrome finish. The hex/allen drive type makes it easy to remove and tighten screws, and the SAE system of measurement ensures compatibility with American-made tools. The set comes complete with a 3/8in. drive size and is manufactured by Proto, a trusted brand in the automotive industry. Whether you're a professional mechanic or just starting out, this socket set is a must-have for any tool collection.