This cutter makes a special cut on 5 panel cabinet doors. After installing the door, the inner edges must be loosened. The bottom of the panel is 3/8 inch deep and any other router will not work to soften the edges. The bearing touches the plate and cannot be operated. This cutter gets the job done. The distance from the start of the radius profile to the bottom of the bearing is just under 3/8 inch. I can't explain how this makes the job quick and painless. You made my day. Thank you Amana