Diamond drill bit for glass hole saw with centering for glass, ceramic, porcelain and tiles, 30 mm

1. Smoothing and finishing, reduced cutting resistance and drilling pressure, and improved sharpening and water lubrication. 2. Creates clean, precise holes in minutes, with virtually no chipping. The center drill bit ensures accurate drilling. 3. The drill bit is coated with white zinc, providing high corrosion resistance and maximizing its lifespan. Ideal for drilling glass or ceramic, it significantly extends the drill bit's life. 4. The diamond drill bit features through holes that facilitate the entry of cooling water, allowing for easier removal of chips and other particles. This simplifies the drilling process. 5. Suitable for working with stone, ceramic tiles, glass, granite, etc. Ideal for use with electric drills. Information: Diamond machining processes for drill bits include sintering, electroplating, and brazing. Galvanized and brazed diamond has a surface coating that adheres to the cutting edge. The cutting edge wears down instantly as soon as the diamond breaks. The cutting edge of a sintered diamond contains diamond particles from the inside out, which ensures a permanent sharpness. Sintered diamond has self-sharpening properties, unlike electroplated or welded diamond, which cannot be sharpened. Drills clean, precise holes in minutes with minimal chipping. The central pilot bit makes precise drilling easy. Long Lifespan White zinc coating on the drill bits for excellent corrosion resistance. Ideal for drilling glass or ceramics and Significantly extends the life of the drill bit. Drainage Hole Diamond drill bits with a drain hole facilitate access for cooling water and the removal of dust and other drilling particles. This simplifies the drilling process.Tips: Start drilling diagonally, make a round mark, and keep the drill bit straight. Always use lubricant (water) when using drill bits. Low drilling pressure and more frequent water lubrication will extend the life of the drill bit. Not suitable for use in concrete or for depths greater than approximately 1.2 cm. Common Uses: Widely used for drilling precise holes in glass, ceramics, porcelain, ceramic tiles, stoneware, limestone, slate, marble, light-colored stone, and fiberglass of glass. Not suitable for drilling tempered glass, plastic, or wood. Reduced drilling speed, lower drilling pressure, and more frequent water lubrication will prolong the drill bit's life. Works best with a power drill (not included).