The JET Square Wheel Grinder is a belt grinder that uses a flat platen and idler wheels at each end to achieve a long, flat grinding surface. This innovative design permits grinding on the front wheel, which is square to the work and not crowned. The JET Square Wheel Belt Grinder, Models J-4103 and J-4126AC, grind, deburr and chamfer with equal proficiency both internal/external on parts large and small parts. Accessories allow the user to convert the Square Wheel Belt Grinder for polishing or buffing finished parts