The product is a Snap-on 1/2" impact wrench, a high-quality and durable tool used for automotive tasks. It comes with a protective cover for added safety and convenience. The wrench is designed for professional use and is backed by the Snap-on brand reputation. With a drive size of 1/2" and an air inlet size of 1/4", this impact wrench is a reliable and efficient tool for various automotive applications. Work as is batteries charge but not sure how long they stay charged..