359451 Specialty Molding Bit, 1-9/16" x 1"
Product information:
Two flutes, Ball bearing guide (Bearing 5/8") for crown molding, window casing and sills, baseboards, picture frames, chair rails. 
Two flutes, Ball bearing guide (Bearing 5/8") for crown molding, window casing and sills, baseboards, picture frames, chair rails.