Amana Tool 57268 Carbide Tipped Undermount Bowl Bit - 2-3/16" Diameter x 63/64" x 14" Cutting Depth for Solid Surface Countertops - Perfect for Kitchen Sink Installation & Bathroom Vanity Cutting

I have been using router bits for well over 35 years. These bits are by far the worst bits I have ever used for Corian fabrication. II had one little project I used them on and I will never use them on Corian again I just threw away $400 dollars. The sharpness of the bit I would give a 2 star. The tooling of the bits for the the sink fabrication was such that it left a slight ridge that had to be sanded out.. The edge round over bit had a nylon cover on the bearing. It came off within 3" of of start. I had to re-cut edge and use another one of my round overs. Never again this manufacture!