Chamfer or bevel edges for decorative effect or to form edge miter joints. Produce crisp, uniform edges at accurate angles to make 4-, 6-, 8-, 12-, or 16-sided boxes. For best results use in a router table. Bit #49404, 49406, 49405, 49416 are for table-mounted routers only. Bit #49416 max RPM is 16,000. Bit #49406 and 49405 max RPM is 18,000.