Electric Piston Ring Filer 220 Volt Adapter Included 120 Grit Wheel ProformThis easy to use electric ring filer makes quick and precise work of ring grinding. Square up your ring by simply pressing it against the dowel pins for a clean grind. 120V or 220V adapters give this ring filer enough juice to get the job done wherever you are in the world. Features: Comes with One 120 Grit Grinding Wheel Made from High Quality Aluminum Uses Proform Part number 66786 Replacement Grinding Wheels Can Be Bench or Vise Mounted Includes