hsawbit Brazed Diamond Hole Saw, 80mm Tile Cutter with Center Drill Bit, Core Bits for Porcelain Tile, Ceramic, Glass, Granite Quartz, Marble, Gemstone, Dry Drilling

【Professional Diamond Hole Opener】Made of selected high-strength carbon steel and with a diamond-coated drill bit, excellent cutting ability, rust-proof and sturdy, strong torque and long service lIfe. 【center drill bit】Special design with a center drill bit for positioning function, which is convenient to guide the hole saw 【High Quality Hole Drilling】The diamond coating can increase the drilling speed and make the drill sharper. The cutting edge design makes the resistance smaller and more efficient, helping you to drill a smooth round hole accurately. Round chip hole on the side to keep the drill clean at all times. 【Dry Drilling】Dry drilling is ok for Ceramic, Porcelain, Tile, Glass, Granite Quartz, Marble, Gemstone 【Buy with Confidence】 We offer "TWO YEAR" warranty on hole saw. If you have any questions, please feel free to contact us. We will try our best to solve it for you.