These cutters are turned, milled and ground from a solid piece of Tungsten Carbide. They provide the greatest durability when used under stress load conditions such as high volume, high speed cutting in dense natural timbers and abrasive wood composites. Solid carbide dissipates heat more uniformly, extending the tool life. They offer better plunge cutting characteristics than a standard TCT cutter and they can be re-sharpened many more times. Two flute cutters cut more slowly, but give a much finer finish.