Amana Tool has introduced new Corner Rounding 3D Router Bits, designed with both a guide bearing and a guide ring around the outer perimeter of the cutting surfaces -- which allows you to follow the contour of a workpiece to create rounded compound curves. The carbide-tipped bits are designed for use with freehand routing using table-mounted routers. They're available in sizes of 1/8" (item 49528), priced at $89.78 and 1/4" (item 49529), priced at $91.80. Both sizes have a 1/2" shank diameter.