The Circular Hatch & Lid Cutter is a revolutionary tool from Scottool Ltd which means that you can cut matching rebated holes & lids at the same time Designed for use on 22 18 15 & 12mm material No extra rings are required spare piece of material required for lid Produce up to a 400mm diameter rebated access holes in solid floors with matching rebated lid for flush finish For use on Chipboard & MDF for use with most Routers