Widely used: drill bits are very suitable for easily drilling through hard ceramic tiles, ceramics, bathroom tiles, granite and marble, masonry, concrete, glass, and hard plastic. Using water can extend its lifespan. High quality raw materials: using vacuum brazing technology to improve temperature resistance and friction resistance, allowing diamond particles to better adhere to the core steel, improving performance and service life. Using advanced diamond sand material, it can be easily cut and improve durability. High quality core steel body helps to be more efficient, durable, and less prone to deformation. High performance: the spiral groove design at the top of the drill bit helps to remove chips, and the wax inside the drill bit helps to cool and lubricate.