1/4" Shank Round-over Edging Router Bit Set: 5/16" 3/16" 1/4" 1/8" Radius, Bearing Dia. 1/2" Solid Hardened Steel Bodies with Anti-Kickback Design, Baked on heat resistant coating prevents build-up of sawdust, resin, and pitch. Designed for Creating smoothly radiused edges on boards and panels, suitable for combined plunge-cutting and pattern/template routing Premium quality micro grain carbide tips with high performance, suitable for cutting all composition materials, plywoods, hardwoods, and softwoods Can be used without the bearing as a standard straight bit, Use on CNC and other automatic routers as well as hand-held and table-mounted portable routers Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin