The Mac Tools AG14AH 1/4" Mini Head Air Die Grinder is a high-quality straight die grinder designed for precision grinding tasks. Made in the United States, this single unit features a locking throttle for added control and safety. With a maximum speed of 25,000 RPM, this grinder is perfect for automotive work and maintenance tasks. Its compact 1/4" collet size makes it easy to handle and use, offering versatility and efficiency for a variety of applications. Ideal for professionals and hobbyists alike, this Mac Tools air grinder is a reliable and essential tool for any garage or workshop.