Description:* High Stiffness Diamond:This tile cutter is made of industrial carbon steel with nickel-plated coating, which is corrosion-resistant. The thickening of the corundum coating on the tops provides excellent cutting strength for maximum drilling results.* Extremely Sharp: Each borehole bit has been processed by a smooth and fine finish that lowers the notch resistance and drilling pressure, increases sharpness and the use of water lubrication. Great for making clean and precise holes on glass or ceramics and significantly extending the life of the drill bit.* Large See-Through Hole:These ceramic drill bits, along with the large clearance hole, facilitate the entry of cooling water and the escape of chips. Making the drilling process easier and stress relieving.* Widely Used: Ideal for drilling glass, tile bottles, jar blocks, fiberglass, porcelain, ceramic tile, glazed, brick and stone. Specifications:* Type: Diamond Hole Saw * Material: Diamond * Manufacturing Process: Plating * Color: Silver * Product Size: 6mm/8mm/10mm/12mm/14mm * Suitable for: Glass, Ceramic, Tile, Marble, etc.* Quantity: 5pcs/setWarm Tips: During the process of use, please add water to cool down and adjust the suitable speed, which can avoid the high temperature of overheating burning the drill bit. Package Contents: 5 x Diamond Tool Drill BitsNote: 1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.