The Snap-On Tools SFS181 9/16" SAE Flank Drive Deep Socket is a high-quality hand tool designed for automotive use. Made in the United States, this 6-point socket features a chrome surface finish and a 3/8" drive size. With a standard size of 9/16 inches, this single item is perfect for professionals who require durable and reliable tools for their work. Snap-On is a trusted brand known for producing top-notch automotive tools, making this deep socket a valuable addition to any toolbox.