Description: 23pcs 3-50mm Diamond Drill Bit Set Hole Glass Marble Granite Saw Cutter Tool Specifications: Material:Metal Diameter:3,4,5,6,8,10,12,14,16,18,20,22,25,26,28,30,32,35,38,40,42,45,50mm Quantity: 23 pcs 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. - Always use lubrication (water), otherwise the diamond core drill will burn. - Can be used with a standard electric drill. - Start your hole diagonally, make a round trace and then hold drill straight. - 23 different diameter,perfectly meet you need. - Suitable for use in drill hole on glass, marble,or tile. Use note: 1. Start your hole diagonally, make a round trace and then hold drill straight. 2. Always use lubrication (water), otherwise the diamond core drill will burn. Package Included: 1 Set x 3-50mm Diamond Tile Hole Saw (23Pcs) Notice: 1.Please allow a bit error due to manual measurement. please make sure you do not mind before you buy. 2.The color may have different as the difference display, pls understand. More Details: