Features • Advanced Coating Technology: The innovative paint coating on the body prevents damage and enhances durability during use • Precision Cutting Performance: Enjoy clean, smooth openings with no broken edges, ensuring professional results every time • Stable Drilling Action: The design minimizes resistance, allowing for stable drilling without breaking or chipping the material • Versatile Material Compatibility: Perfectly suited for drilling through hard materials like ceramic tile, marble, granite, and concrete • Ideal for Faucet Installations: Specifically designed for creating precise mounting holes in stone countertops, making installation hassle-free Features: 1、This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication 2、Can be used with a standard electric drill( Excluding in this item ) 3、Easy to use, ,good performance, long life 4、Excellent for making clean and accurate hole on glass, tile and marble 5、Always use lubrication (water ), otherwise the diamond core drill will burn- Start your hole diagonally, make a round trace and then hold drill straight Specification: Features: - This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication - Can be used with a standard electric drill( Excluding in this item ) - Easy to use, ,good performance, long life - Excellent for making clean and accurate hole on glass, tile and marble - Always use lubrication (water ), otherwise the diamond core drill will burn- Start your hole diagonally, make a round trace and then hold drill straight - Popular Sizes: 3/4" (20mm)&1" (25mm)&1 1/4" (32mm) &1 3/8" (35mm)&1 1/2" (38mm) Package Includes: 1 x 5pcs Diamond Coated Hole Saw Drill Bits Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List