This is our standard 6" diameter, 60mm wide, three knife dedicated head, with your choice of bore depending on the machine. Our industry standard profiled insert is ground with both profiles, a total of four cutting on the same insert. See picture. In moulder applications all four patterns can be used without adjusting spindle heights. Our unique flip flop design allows runs up to 100,000 ft. of flooring with one set of inserts with one insert rotation and one flip of the side heads. Made from impact resistant carbide. These heads can be designed to match existing profiles. Machine adjustment is not needed after initial set up, insert change or rotation.