Industrial quality aluminum cutting router bits are made by Amana Tool, the leading manufacturers of cutting tools. Aluminum cutting router bits by Amana feature outstanding tool longevity, a tendency to stay sharper, mirror like carbide finish, excellent carbide brazing, a broad selection of sizes and most importantly quality of cut. 5-Pc Aluminum Cutting CNC Solid Carbide Spiral 'O' Flute Collection, 1/8 Inch Shank contains bits that use the highest quality sub-micrograin carbide, a special proprietary edge processing system and feature a super high polished cutting edge with a unique mirror finish, resulting in clean cuts, less chance for chip re-welding, a superior surface finish and a longer tool life. Excellent for: ALPOLIC Copper Composite Material (CCM), Alucobond, Aluminum, Aluminum 5052, Aluminum 6061, Aluminum Alloys, Aluminum Composite Materials (ACM), Aluminum Composite Panel (ACP), Alupanel, Brass, Copper, Dibond, Durabond, e-panel, Etalbond, Gold, Non-Ferrous Metals, Plastic, Silver, Solid Surface, Titanium Composite Material (TCM), Wood. Set #AMS-161 Includes the Following Tools: 51471, 46291, 51470, 51406, 51459.