Amana Tool 55460 Carbide Tipped One Piece Concave Stile & Rail 2 D x 1-9/32 CH x 7/32 R x 1/2 Inch SHK Router Bit
Also known as stile and post router bits.
These one piece stile & rail bits are an easy and effective technique for creating cabinet door frames. You simply adjust the height of the bit accordingly in the router table to cut the profile cut (with bit lowered in the table) and the cope cut (with bit raised in the table). For 3/4" thick frames.