The Brand New Mac Tools 1/4" Collet mini 90 degree Angle Die Grinder AG325AH90 is a high-quality air grinder designed for automotive tools and supplies. With a maximum speed of 25000RPM, this angle die grinder offers precision and efficiency for various grinding tasks. The 1/4" collet size ensures compatibility with a wide range of attachments, making it a versatile tool for professionals in the automotive industry. Built by Mac Tools, a reputable brand known for producing top-notch tools, this grinder is a reliable and durable option for precise grinding and cutting tasks.