The Klein 65823 is a 5/8-inch spark plug socket designed for use with socket wrenches. This socket features a knurled handle to ensure a secure grip. It is also made of steel for added durability and strength with a chrome finish to enhance its resistance against corrosion for a long life. Additionally, it features a male square of 1/2-inch drive size, a common size usually used by professionals on the jobsite. Klein Tools is the world leader in the design and production of high-quality and commercial-grade tools. In cooperation with Klein Tools, we at PlumbersStock carry high-quality and reliable products for a very affordable price. Grab yours now here at PlumbersStock.