The Snap-on Tools S9704KFUA 3/8” Dr 6Pt SAE 13/16” Flank Universal Spark Plug Socket is a premium hand tool designed for automotive maintenance and repair. Made in the United States, this single item socket features a 6 point drive type and a chrome surface finish. With a specialty SAE system of measurement and a size of 13/16 inches, this spark plug socket is a reliable and durable addition to any tool collection. The trusted Snap-on brand ensures high quality and precision in every use. As-is. No returns. No warranty (by me).