Amana Tool 54120 Carbide Tipped Ogee 5/32 R x 1-1/8 D x 1/2 CH x 1/4 Inch SHK w/ Lower Ball Bearing Router Bit

The ogee is one of the basic shapes used in moldings and decorative profiles. An S-shaped curve, it is convex at the top fairing down into a concave (shown inverted). The ogee bit is characterized by the concave shape coming off the pilot bearing.

Using the optional 3/8" bearing produces a profile with a fillet at the convex end of the curve.
Use in handheld or table-mounted router.