Amana Tool 55420 Carbide Tipped 2-Piece Concave Stile and Rail 1-5/8 Dia x 1-1/16 x 1/4 Radius x 1/2 Inch Shank Set
These sets include two trim cutters for stock 7/8" through 1" in thickness. (These trim cutters can be removed for making bearing-guided cuts on stock under 7/8" thick.)
Use in a table-mounted router. Guide straight cuts with the fence, setting it tangent to the trim cutters. Use the pilot bearing only for cuts on curved rails or stiles; for cuts on curved parts 7/8" to 1" thick, a template must to used.