General description The Center Point Wall Hole Drill Bit is designed for efficient drilling in various materials such as brick, stone, cement, and concrete. Made from high-quality metal with a carbide tip, this drill bit ensures durability and a long service life. Technical specifications Diameter: 65mm Material: Metal with carbide tip Usage Ideal for opening red brick walls, rammed earth walls, concrete walls, foam bricks, and masonry walls. Commonly used for installing air conditioners, oil smoke extractors, and sewer pipe holes. Other information Features two large chip openings for smoother chip removal and higher drilling efficiency. Utilizes high-frequency welding technology for robust and precise construction.