Freud Chair Rail Router Bit 99 477 1 2 Inch Shank Upper Profile (2 1 4 Dia 1 1 2 Height TiCo Carbide Architectural Molding Cutter) Grinding Discs & Natural Stone Pro Tip: When & Natural Stone Pro Tip: When coring large 5 inch penetrations through dense structural aggregate 05 kg) Pro Tip: Always maintain full water flow from the integrated tank onto both sides of the diamond blade when cutting concrete The Freud 99 477 Chair Rail Router Bit delivers an industrial millwork shaping solution engineered to mill the upper profile of traditional #300 chair rail moldings across fine hardwoods and softwoods #300 Upper Profile Precision: Custom ground carbide geometry replicates the upper section of industry standard #300 chair rail millwork