The tools cut aluminum, composites, honeycomb, plastics, as well as natural and man-made wood materials. Close tolerance, high production, and long life are the features of Onsrud bits. Onsrud recently introduced three new exciting cutting tools designed to tackle tough composite milling/routing applications. These tools are designed to dramatically improve the machining of carbon graphite and aramid fiber materials. They use a solid-carbide burr with a unique finishing edge designed to equal the cutting performance of burr tool but with a much better edge finish.