Teronbeta Diamond Hole Saw 38mm with Pilot Center Drill Bit, Vacuum Brazed Diamond Core Hole Cutter for Tile, Porcelain, Glass, Ceramic, Marble

Professional Diamond Hole Saws: Diamond coated hole saw drill bit with vacuum brazed technology, Ideal for drilling on tile, porcelain, glass, marble, ceramic etc.

Cut a Precise Hole: With pilot center drill bit design, Avoids the hassle of slipping and makes drilling holes on tiles easy and precise.

Durable: With vacuum brazed technology to make the diamond adhere better and improve the heat and wear resistance. which it is provide a superior performance and longer service life.

Efficiently: Thicken and uniform diamond coated for fast and effortless cutting. Large clearance hole on lateral side allow for water to keep cooling and remove chips easy.

Use Instructions: Keep hole saws drilling vertically, when a round slot is drilled you can remove the centring bit and continue drilling. Recommended speed about 500-800 RPM and use water to keep it cooling for last long.