Saburr-Tooth carving burr “Power Carving” rotary tools feature long-lasting, razor-sharp carbide cutting teeth arranged into a unique open pattern to resist “loading” while providing the “Power Carver” rapid stock removal and smoother finishes Industries Ideal for use on Wood, Rubber, Silicone, Plastic, Foam, Bone, Ice, Polyurethane, Epoxies, Acrylics, Composites, Graphite, Soap Stone, and Alabaster.