Makita Die Grinders and Straight Grinders are specialized tools that can handle the most difficult materials. With high RPM's these tools can easily grind spurs away that are left behind after cutting metal piping. They can also be used for engraving, general shaping, finishing and minor buffing jobs. Usually one would think that such powerful tools would be noisy, hard to handle, run hot and have excessive vibration but that is not the case with these tools because of the design utilized by Makita. Don't get stuck with a grinder that will crumble under the pressure of hard tasks, get a Makita Die Grinder or Straight Grinder instead.