The Freud Reversible Glue Joint Bit provides a very strong joint for edge-gluing applications by increasing the surface area for glue. Plane boards to a uniform thickness; align bit to the center of the board, then reverse each board for a perfect glue joint. An ideal joint for raised panels, drawer fronts, table tops or any glue-up application. For use in hardwood, softwood or composites on CNC or table-mounted routers.