Milwaukee 3/8" Drive 5/8" Magentic Spark Plug Socket features an amplified rare earth magnetic retainer that balances a secure fit with smooth removal of the spark plug from the socket. This 6-point socket includes precision knurling on the outside, allowing for better control when hand tightening or loosening. Both the socket and retainer are designed to withstand harsh chemicals commonly found in the garage, ensuring durability. Stamped size markings make it easy to identify the socket size, while the external hex at the base fits an 11/16” wrench for added control. Backed by a Lifetime , this spark plug socket is built to provide reliable performance and ease of use. Model Number: 48-22-9552