The Vintage S-K Tools 5/8" Spark Plug Socket is a single item hand tool designed for automotive use. With a 1/2" drive size and 6 point drive type, this spark plug socket is specifically designed for removing and installing spark plugs. The SAE system of measurement and 5/8" size make it compatible with a variety of vehicles. Manufactured by SK, this high-quality socket is a reliable and durable addition to any automotive tool collection.