The Capri Tools 1/4 in. 1 HP Air Straight Die Grinder is a high-quality automotive tool designed for precision grinding tasks. With a 2-year warranty, this single item includes a variable speed trigger for added control. The manufacturer part number, CP32500, ensures compatibility with a 1/4in. collet size and air inlet size. Operating at a maximum speed of 23000RPM, this grinder is perfect for cyclists and mechanics looking for a reliable and efficient tool for their projects.