YLYL Diamond Drill Bits for Ceramic, Diamond Hole Saw Drill Bit Set Kit, Glass Drill Bit for Bottles, Pots, Marble, Granite Stone, Tile Cutting 0.23 Inch - 2 Inch (6 mm - 50 mm) Pack of 15

15 sizes: diamond drill bits for ceramic, 6 mm/0.23 inches, 8 mm/0.31 inches, 10 mm/0.39 inches, 12 mm/0.47 inches, 14 mm/0.55 inches, 16 mm/0.62 inches, 18 mm/0.78 inches, 22 mm/0.86 inches, 25 mm/0 mm/0 mm/0 mm/0 mm/0.25 mm. .98 inches. 6 mm/1.02 inches, 28 mm/1.1 inches, 30 mm/1.18 inches, 40 mm/1.57 inches, 50 mm/2 inches. Glass cutting drill bit to meet various demands Wide usage: Diamond hole saw drill bit set removes a complete circle from glass, marble, tiles, granite, ceramic or other; perfect for drilling glass, porcelain tile, granite, bottles, wood, blocks jars, ceramic marble and other hard surfaces, etc. Super material: glass drill bit for bottles, are made of industrial grade carbon steel, sharp, fine workmanship and super wear-resistant, extended service life. Glass cutting drill bits are high quality and good performance that excellent for making clean and accurate holes. Tip: Diamond drill bits for ceramic, when you use the diamond hole saw, please use lubrication (water), lubrication will extend drill bits life.