The MAC Tools AD540 3/8" Reversible Drill is a high-quality air pneumatic tool designed for automotive use. With a maximum speed of 1800RPM, this drill features a 3/8" chuck size and comes with a 3/8" chuck key for easy bit changes. The reversible feature allows for versatile drilling capabilities, making it a convenient tool for various projects. Built by the trusted brand Mac Tools, this unit is durable and reliable for professional use.