Amana 49500 Specifications: Radius: 3/16" Large diameter: 7/8" Carbide height: 1/2" Shank diameter: 1/4" Overall length: 2" Amana 49500 Features: The basic edge-forming bit, the corner-rounding bit rounds an edge to a given radius. The tool is shouldered to cut a fillet. The cut can be used to ease edges, as a simple profile, or as a part of a complex one. Also known as roundover, rounding over, and quarter-round. If a smaller pilot bearing is used, a second shoulder can be produced, in effect making the bit a beading bit.