(under subclass 883) Apparatus comprising a first cutting tool that is generally planar and circular in shape, adapted to rotate about an axis normal to the planar surface of the tool during cutting, including a cutting edge extending generally about the circular perimeter; and a second cutting tool that is also generally planar and circular in shape, adapted to rotate about an axis normal to the planar surface thereof during cutting, including a cutting edge extending generally about the circular perimeter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
864, for the method or apparatus for cutting by plural rotary cutting tools combined with additional cutting of a different type.