The Snap-on Tools USA 3/8" Drive 9/16" SAE 6 POINT Knurled Spark Plug Socket S9716KA is a high-quality hand tool designed for automotive use. Made in the United States, this single item socket features a chrome surface finish and a specialty SAE measurement size of 9/16 inches. With a 6-point drive type and 3/8-inch drive size, this socket is a durable and reliable option for efficiently removing and installing spark plugs in vehicles. Snap-on is a trusted brand known for producing top-notch automotive tools, making this socket a valuable addition to any mechanic or car enthusiast's tool collection.