Amana Tool 55436 3-11/23" x 1-5/8" In-Stile & Rail Ogee Plywood Amana Tool 55436 3-11/23" x 1-5/8" In-Stile & Rail Ogee Plywood Features, Designed to cut precise grooves to provide undersized plywood veneered panels with a snug rattle free fit Cut frame stock for 5/8" through 1-1/4" in thickness. Each set includes 2 Pieces (1 for stile cuts & 1 for rail cuts and shims) Carbide-tipped for longer cutting tool life 3-11/32" length 1-5/8" cutting diameter 1/2" shank. Bits in these sets have profile and groove or rabbet cutters and ball-bearing guide mounted on a 1/2" shank. Respacing of the components should only be necessary - using the provided shims - after the cutters have been re-sharpened. Guide straight cuts with the fence; use the pilot bearing only for cuts on curved rails or stiles.