Features INCISIVE AND WEAR RESISTANT: The diamond coating increase the drilling speed of the drill bit, making the drill bit more incisive. Electroplated diamond is uniform and more wear resistant NICKEL PLATED COATINGS: Nickel plated surfaces extend service life and improve surface corrosion resistance, and diamond coatings maximize performance and maintain more incisive cutting edges compared to traditional carbide or bimetallic hole saws CONVENIENT CHIP REMOVAL: Diamond hole saws with gap holes facilitate the entry of cooling water and the removal of chips from the hole, making the drilling process easier DRILLING OBJECT: Diamond hole saw is suitable for drilling glass, ceramics, tiles, limestone, slate, marble, light stone and fiberglass WITH BOX: Diamond hole cutter is equipped with a storage box for easy storage, portability and access, and also prevent damage and loss Specification: Item Type: Diamond Hole Saw Material: Diamond Specification: Approx. 85mm / 3.35in Use: Drilling glass, ceramics, tiles, limestone, slate, marble, light stone and fiberglass Package List: 1 x Diamond Drill Bit 1 x Storage Box Note: Not suitable for drilling in tempered glass, plastic and wood. Package List 1 x Diamond Drill Bit 1 x Storage Box