Precision Roll Grinding CINMAX Roll Grinding Wheels from CINCINNATI MACHINES are computer designed specifically for precision roll grinding work. Available in cost-effective conventional resin wheels for light-duty, toolroom, or finishing work, or in value oriented and long.lasting MAX technology wheels for those high.production, heavy stock removal applications. In both cases, you will find that CINMAX Precision Roll Grinding Wheels will perform consistantly, remove stock efficiently, and provide the precision roll finish and sizes that you need with a minimum of wheel dressing operations.