The Vintage MAC XUP 186 9/16 Impact Swivel Socket is a high-quality hand tool designed for automotive use. Made by the reputable brand MAC in the United States, this socket features a 6-point design and a 3/8 inch drive size, making it versatile and durable for various mechanical tasks. With its impact type and SAE measurement system, this single item is a valuable addition to any toolkit, especially for those who appreciate vintage tools with a proven track record of reliability and craftsmanship.