1PC 6-80mm Diamond Drill Bit Set - Diamond Coated Hole Saw for Marble, Granite, Brick, Tile, Ceramic & Concrete Drilling - Perfect for DIY Home Renovation, Stone Countertop Installation & Masonry Work (70mm Hole Diameter)

Diamond Drill Bit KitMaterial: steelGood Performance and long life.Applicable Industry: Suitable for Stone, Tiles, Ceramics, Glass and Granite, etc Processing.Package Included: 1pcs Diamond Drill Bit KitDear customersThe estimated delivery time for our products is 7 to 21 days.If you have not received your order within 30 days, please contact our customer service.If you have any questions, please contact us, we will reply you within 24 hours, veryYour satisfaction makes us the last wish, I wish you a happy shopping

Professional Diamond Hole Cutter With Special design of diamond brazed For porcelain, glass, marble, ceramic, rock and granite etc.

Nickel plating surface can extend the service life and enhance the surface corrosion resistance.

High Quality Hole Drilling Made from carbon steel with diamond blade ideal for drilling clean and accurate holes and cut a perfect circles with these tools

Diamond coating enhances the drilling speed, which makes the bit more sharp.

Tips Electroplated diamond coating will wear off if the tool gets too hot. Never let your drill bit run dry.