35mm brazed core diamond drill bit for hole saw, 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, anti-rust and durable, high torque and long service life.

【High quality hole drilling】Diamond coating can increase the drilling speed and make the drill sharper. The tip design makes the resistance smaller and more efficient, helping you drill a smooth round hole precisely. 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】Firstly, 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 wet when drilling to avoid overheating

Diamond drill bit

This diamond drill bit can remove a full circle of glass, tile, marble, granite, ceramic or other materials.

Made of high-strength carbon steel, sturdy and durable, with excellent anti-rust performance, it can be used for a long time.

The design of the cutting hole is matched with the hole to round chips on the side to effectively increase the drilling speed and keep the bit clean.

Clearance hole

Diamond drill bits with clearance hole make it easier for cooling water to enter and chips to escape when drilling. The harder the material, the slower the drilling speed should be.

If you smell burning, back off! Either your speed is too high or the pressure you are applying is too much.Your wick should never feel hot to the touch, not even lukewarm.