Specification Brand : XIANFENGHU BulletPoint1 : DURABLE DIAMOND GRIT: Featuring industrial-grade diamond grit, these hole saw bits can easily cut through glass, ceramic, concrete, stone and tile with long-lasting sharpness. BulletPoint2 : PRECISE HOLE CUTTING: The spiral steel shank and diamond-coated cutting edge ensures clean, burr-free holes are drilled every time from 1/2 inch to 2 inches in diameter. BulletPoint3 : 10-PIECE VERSATILE KIT: Contains hole saws in ten popular sizes from 1/8, 5/32,3/16, 1/4, 5/16,3/8,1/2, 9/16, 5/8, 11/16, inches for drilling a variety of precise holes in glass, porcelain tile, granite, bottles, Blocks Jars, ceramic marble and other hard surfaces etc.l. BulletPoint4 : QUICK AND EASY TO USE: Simply clamp into any standard power drill and let the diamond-encrusted edge smoothly cut through tough materials without breaking or dulling easily. BulletPoint5 : LONGEVITY AND VALUE: High-quality High-speed industrial grade carbon 45# steel construction and diamond-coated cutting edges last far longer than regular metal hole saws, saving time and money on frequent replacements. Color : Silver CompatibleMaterial : Metal CompatibleMaterial1 : Ceramic CompatibleMaterial2 : Porcelain ExternallyAssignedProductIdentifier1 : 082472308778 ExternallyAssignedProductIdentifier2 : 7535001828320 ExternallyAssignedProductIdentifier3 : 0082472308778 ExternallyAssignedProductIdentifier4 : 00082472308778 FinishType : Diamond IncludedComponents : no IncludedComponents1 : KITS 300CHC CARBIDE HOLE CUTTER KIT IncludedComponents2 : KITS 300CHC CARBIDE HOLE CUTTER KIT IncludedComponents3 : KITS 300CHC CARBIDE HOLE CUTTER KIT IncludedComponents4 : KITS 300CHC CARBIDE HOLE CUTTER KIT IncludedComponents5 : KITS 300CHC CARBIDE HOLE CUTTER KIT ItemDisplayWeight : 1.7 pounds ItemName : Diamond Drill Bit Set for Glass, 10 PCS Diamond Hole Saw Set, Glass Drill Bit for Tiles Ceramic Bottles,Pots, Marble, 1/8"-11/16" (10pcs) ItemPackageDimensions_Height : 0.69 inches ItemPackageDimensions_Length : 10 inches ItemPackageDimensions_Width : 7 inches ItemPackageQuantity : 1 ItemTypeKeyword : hole-saw-sets Manufacturer : xfh Material : carbide ModelName : 30877300CHC ModelNumber : 30877300CHC NumberOfItems : 1 PackageLevel : unit PartNumber : dghs ProductDescription : These diamond hole saw drill bits are a must-have for masonry projects. Made of durable carbide, each bit has an industrial-grade diamond coating that stays sharp through repeated cuts in glass, ceramic, concrete, brick, and stone. The 10-piece set includes sizes ranging from 1/8-inch to 11/16-inches, allowing you to drill holes of various diameters for plumbing, electrical work, and more. Main Features: Removes a complete circle glass, tiles, marble, granite, ceramic or other material and only needs water for lubrication Can be used with a standard electric drill (not included) Easy to use, high quality, good performance, long life Excellent for making clean and accurate hole on glass, tile and marble 【Attention】 Please keep adding water when the diamond drill bits are working on the glass or ceramics.low drill pressure and increased use of water lubrication will extend drill bit life How to use a hand drill to drill holes in the glass/tile/stone? Step 1. The bit on the glass/tile/stone 45 degree, open a half-moon notch on it Step 2. Slowly up the bit to 60 degrees, and then gently drill Step 3. Reached 90 degrees, continue to drill Step 4. Drill through the glass/tile/stone finally, the technique requires a “wobble” of the drill rather that steady pressure straight on Warnings: Not for use on Concrete or for depths beyond about 1/2";