This bit rounds over and trims the countertop edges after the bowl is mounted. Can be used with the CMT 880.551.11 and 866.501.11 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®).