Komet Q Finishers for efficient finishing of composites and optimum results. Conically shaped. Carbide, yellow and blue ring, for labial sanding. Working part 6mm. Full length 19mm. Max speed 450000rpm. Komet Q Finishers for efficient machining of composites and optimal results. The H134Q, H135Q and H50AQ instruments have a smooth, non-cutting tip that ensures gentle finishing without damaging the gingiva.