Widely used: Drill bits are very suitable for easily drilling through hard tiles, ceramics, bathroom tiles, granite and marble, bricks, concrete, glass, and hard plastics. Water can extend its lifespan. High quality raw materials: vacuum brazing technology is used to improve heat resistance and wear resistance, enabling diamond particles to better adhere to the core steel, improving performance and service life. Adopting advanced diamond sand material, it is easy to cut and improves durability. High quality core steel body helps improve efficiency, durability, and resistance to deformation. High performance: The spiral groove design at the top of the drill bit helps to remove debris, and the wax inside the drill bit helps to cool and lubricate.