The MAC Tools AD540 3/8" Reversible Drill Air Pneumatic is a high-quality drill designed for automotive use. With a maximum speed of 1800RPM and a chuck size of 3/8in., this pistol grip drill is durable and reliable. Its reversible feature allows for versatile use, making it a valuable tool for professionals and DIY enthusiasts alike. Made by the trusted brand Mac Tools and originating from Taiwan, this single item unit is a great addition to any tool collection. tested and working includes chuck key