35mm Diamond Hole Saw with Centering Guide Drill Bit, Professional Brazed Diamond Drill Bit for Tile, Porcelain, Glass, Marble and Ceramic

Professional Diamond Hole Saws: Diamond-coated hole saw drill bit with vacuum brazing technology, ideal for drilling tiles, porcelain, glass, marble, ceramics, etc.
Precise Hole Drilling: With the pilot drill bit design, avoid slippage problems and make drilling holes in tiles easy and precise.
Durable: Thanks to vacuum brazing technology, the diamond adheres better and improves heat and wear resistance, resulting in superior performance and a longer lifespan.
Efficient: The thick and uniform diamond coating allows for fast and effortless cutting. The large clearance hole on the side allows water to continue cooling and easy chip removal.
Instructions for Use: Keep the hole saws vertical while drilling. When a round hole is drilled, you can remove the pilot drill bit and continue drilling. The recommended speed is approximately 500-800 RPM, and using water helps maintain cooling for a long time.