This MAC Tools 1/4" Drive 1/2" Shallow 6 Point Socket M166 is a high-quality tool made in the USA. It is perfect for automotive repairs and other DIY projects that require a socket wrench. The socket is made of chrome and has a standard socket type. The socket is designed to fit 1/2 inch nuts and bolts and has a 6 point drive type. It comes as a single item and is part of the SAE system of measurement. This socket is a great addition to any mechanic's tool collection, providing the needed strength and durability.