Timberline 440-10 Carbide Tipped Traditional Reversible Stile and Rail Assembly 1-5/8 D x 7/8 CH x 1/2 Inch SHK Router Bit

Also known as stile and post router bits.

Cut both the stiles and rails with a single economical assembly!
Switch from the stile cut to the rail cut simply by rearranging the cutters and bearing on the arbor. Because the profile and the cope are cut with the same cutter, you get a perfect fit. Guide straight cuts with the fence; use the pilot bearing only for cuts on curved rails or stiles.
Use in a table-mounted router. Carbide Tipped.