Mophorn Diamond Hole Saw 6 Pieces 20/35/40/45/50/68 mm Diamond Drill Bit Set M14 0.8/1.4/1.6/1.8/2/2.7 Inch for Granite Porcelain Stoneware and Tiles

DURABLE & DURABLE MATERIALS: The diamond hole saw blade provides more effective performance than conventional carbide or bi-metal hole saws. Easy installation: can be connected directly to an angle grinder. Drill a pre-drilled hole before drilling. This prevents the saw from moving from the desired drill point. STRONG PERFORMANCE: The ceramic drill bits are equipped with holes on the body, can effectively remove chips while the blades rotate at high speed. Portable Case: The 6 pieces diamond drill bits come with a compact case. The drill bits can be stored in this case when not in use. WIDE APPLICATION - The core drill ensures a clean and accurate hole in most rigid and abrasive materials such as tiles, granite, marble, other stones and porcelain.