DESIGNED TO LAST: The hardness and durable carbide material create a robust tip for this carbide drill bit. The result is a tool that drills smoothly and quickly, even in high temperatures, is less likely to break or wear out, and is built to last. Fast Drilling: Easily locate and drill holes in masonry using the carbide drill bit set. The wear-resistant and impact-resistant design ensures rapid entry into the hole, making it the perfect kit for efficient drilling. Innovative Tile Drilling Solutions: Our carbide bits are electrophoretically coated to prevent rust. Easily drills tiles, leaving a clean, burr-free hole. Efficient Drilling: With the tile drill bit, you can drill holes in ceramic, porcelain, marble and granite without adding water. Just make sure that the speed of the drill is above 2,600 rpm. The higher the speed, the more durable and precise the holes will be. Wide Application: From drilling granite to ceramic, concrete and even ordinary glass, this carbide drill bit set