The Vintage Thorsen 1/2" dr. 9/16" 12 Point Socket #518 is a high-quality hand tool designed for automotive use. This single item socket features a standard 12 point drive type with a 1/2 inch drive size, allowing for easy and precise torque application. Made in the United States by Thorsen, a trusted brand in the automotive industry, this socket is a valuable addition to any mechanic's toolbox for working on SAE measurement systems.