60mm Brazed Core Diamond Hole Saw Drill Bit Hollow Hole Cutter for Glass Porcelain Tile Marble Ceramic Granite

【Professional Diamond Hole Opener】Made of selected high-strength carbon steel and diamond-coated drill bit, excellent cutting ability, rust-proof and durable, high torque and long service life.

【High-quality Hole Drilling】Diamond coating can increase drilling speed and make the drill sharper. The cutting edge design makes the resistance smaller and more efficient, helping you drill a smooth round hole accurately. Round chip hole on the side to keep the drill clean at all times.

【Ideal for】Diamond brazing specially designed for porcelain, glass, marble, ceramic, rock and granite, etc.

【Usage Tips】First, you can cut a 45° oblique, open the positioning crescent groove, then slowly erect the hole opener and drill at a uniform speed. In addition, keep the bit moist when drilling to avoid overheating.

【Buy with confidence】If you have any questions, please feel free to contact us. We will do our best to solve it for you. (Please clamp the shaft in the right place and take necessary protective measures when processing wood).