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

• 【15 Sizes】Diamond drill bits for ceramic, 6mm/0.23“，8mm/0.31“，10mm/0.39“，12mm/0.47”，14mm/0.55“，16mm/0.62”，18mm/0.7“，20mm/0.78” , 22mm/0.86”，25mm/0.98”， 26mm/1.02“，28mm/1.1“， 30mm/1.18“, 40mm/1.57in, 50mm/2“. Glass cutting drill bit . • 【Premium performance】Glass cutting drill bit are high quality and good performance that excellent for making clean and accurate hole. • 【Wide Usage】Diamond hole saw drill bit set kit 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 and other hard surfaces • 【Built to Last A Lifetime】Glass drill bit for bottles, are made of industrial grade carbon steel, sharp, fine workmanship and super wear-resistant, Extended service life, these drill hole saws are impact and wear resistant, durable and robust. • 【Tip】Diamond drill bits for ceramic, When you using the diamond hole saw, please use lubrication (water), lubrication will extend drill bits life.