Used to cut purfling/binding channels on guitars or any other projects that require precision cuts. Each change in bearings adjusts the cut by .010 when you need a precision fit. Available as a set only. Cutter is 1″ Diameter x 5/8″ Kerf with 1/4″ Shank. Bearings range from .500 to .880 for binding channels from .250 to .060.