Amana Tool’s Fiber Glass Router. Burs have an incorporate reciprocating diamond-flute, geometry is strong, negative rake angles, and generous fluting. Provides the best tools for cutting in a wide variety of woven, resin bond,  fiberglass, and composite materials. Combines the best-proven performance of a diamond-cut geometry with the capacity to plunge with a minimum top-side burr. 135º drill point will minimize a part of a deflection on a thin or unsupported workpiece.