The Mac Tools AD511 3/8" Standard Air Drill is a high-quality and reliable tool designed for automotive use. With a keyed chuck key type, this air drill is easy to operate and control. The package includes the drill, key, and manual, making it a comprehensive tool set for various air tool applications. The Mac Tools brand is known for their durable and dependable tools, ensuring that the AD511 will meet the needs of professionals and DIY enthusiasts alike. (A2)