This Dotco 90 Motor with 3500 RPM and 1/4-28 bit is a top-of-the-line tool for aircraft maintenance. It is designed to provide efficient and reliable performance, making it an ideal choice for professionals in the industry. With its high-quality construction and advanced features, this pneumatic drill is perfect for use in various aircraft tools. Whether you are a mechanic or a DIY enthusiast, this Dotco 90 Motor is a must-have for your collection. It is compatible with a wide range of aircraft tools and is built to last, ensuring that you can complete your tasks with ease. So, if you're looking for a reliable and efficient tool for your next aircraft project, this Dotco 90 Motor is the perfect choice.