15pcs 6-50mm Hole Saw Diamond Ceramic Tile Glass Porcelain Marble Drill Bit Features:This diamond coated core milling cutter removes the complete circle from glass, tile, marble, granite, ceramic or other materials, and only needs water to lubricate. Feature:1. Can be used with standard electric drill (excluding in this item).2. Easy to use, high quality, good performance, long service life.3. Great for making clean and accurate holes on glass, tiles and marble.4. Always use lubrication (water), otherwise the diamond drill bit will burn.5. Start the hole diagonally, make a circular mark, and then hold the drill straight down. Size:Outer diameter 6mm, shank 5.4mm + drillable depth 35mmOuter diameter 8mm, shank 6.4mm, drillable depth 30mmOuter diameter 10mm, shank 6.5mm, drillable depth 30mmOuter diameter 12mm, shank 6mm, drillable depth 30mm14mm outer diameter, shank 7mm, can drill depth 30mmOuter diameter 16mm, shank 6.4mm, drillable depth 30mmOuter diameter 18mm, shank 8.2mm, drillable depth 30mmOuter diameter 20mm, shank 8mm, drillable depth 30mmOuter diameter 22mm, shank 8mm, drillable depth 30mmOuter diameter 25mm, shank 9mm, drillable depth 30mmOuter diameter 26mm, shank 9mm, drillable depth 30mm28mm outer diameter, shank 9mm, can drill depth 30mmOuter diameter 30mm, shank 9mm, drillable depth 30mmOuter diameter 40mm, shank 9mm, drillable depth 30mmOuter diameter 50mm, shank 9mm, drillable depth 30mmPackage included:15pcs x diamond hole saw1) we accept Alipay, West Union, TT. All major credit cards are accepted through the payment processor's secure escrow.2) payment must be made within 3 days of placing the order.3) if you are unable to check out immediately after the listing ends, please wait a few minutes and try again, payments must be completed within 3 days. About Shipping1.