The Blue Point Tools BLPLM3812 12mm Metric Deep Socket is a high-quality hand tool designed for automotive use. Made with a durable chrome surface finish, this 12-point socket features a 3/8″ drive size and a single piece construction. Specifically designed for metric measurements, this socket from Blue Point is a reliable and essential tool for any mechanic or auto enthusiast needing to work on nuts and bolts with a 12mm size.