The carbide-tipped Multi-Purpose Rotary Bit can bore through many materials. Materials and applications include: Steel, Glass, Plastic, Wood, Brick, Masonry, Ceramic Tile, Concrete, Fiberglass/Plexiglass, Marble and Granite. Made in Germany, the CM-MPB has unique tip geometry that enables the multi-purpose rotary bit to penetrate multiple materials. This product is ideal for cordless drills, corded drills and drill presses.