This bit rounds over and trims the countertop edges after the bowl is mounted. Can be used with the CMT 880.551.11 bevel cutter for a flush cut-out between the countertop and installed undermount bowl. For use on hand-held portable routers. Features a non-marring Delrin bearing to protect the finished edges. Bit is equipped with 2 Hi-Density carbide-tipped cutting edges for long-lasting cutting performance, features features anti-kickback design to control the depth of cut and PTFE-coating to prevent pitch and resin build-ups. CMT orange bits have been rated the #1 overall router bits compared to other brands (Wood Magazine). From the Manufacturer These bits roundover and trim the countertop edges after the bowl is mounted. Can be used with the CMT 880.551.11 bevel cutter for a flush cut-out between the countertop and installed undermount bowl. For use on hand-held portable routers. Features a non-marring Delrin bearing to protect the finished edges.