Specification Brand : TINSKY BulletPoint1 : ✅Add Versatility to Your Tool: 6 Pieces of dry diamond core drill bits kit for drilling holes diameters of 1/4 inch(6mm), 5/16inch (8mm), 3/8inch (10mm), 1/2inch (12mm), 9/16inch (14mm) and 5/8inch (16mm) and 2pcs silver hexagonal handle diamond tile drill bits 6/8mm. BulletPoint2 : ✅Vacuum Brazed Diamond Technology: Great for drilling clean holes in hard materials, especially tiles, porcelain ground, granite ceramic glass mirror marble stone masonry brick (not for wood). BulletPoint3 : ✅Dry Drilling Design: Diamond drill bit integrated with wax lubricant inside which melts while dry drilling and cools the cutting surface; Water can be used as additional cooling to prolong the life of the bit. BulletPoint4 : ✅Unique Details: Diamond coating enhances the drilling speed; Round Shank is compatible with most machines such as Hand Drill, Angle Grinder, and Bench Drill; Side flutes help to remove debris and drill holes smoothly and fast; Depth mark useful for precise project. BulletPoint5 : ✅Worry-Free: This diamond drill bits set comes with a portable storage case for convenient use and storage. And diamond coating enhances the drilling speed, suitable for dry drilling. BulletPoint6 : Wet Use with Water for Cooling Drills Through Quartz, Granite, Porcelain, Ceramics, Tiles, Glass Color : blue CompatibleMaterial : Aluminum CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 035781000796 ExternallyAssignedProductIdentifier2 : 0035781000796 ExternallyAssignedProductIdentifier3 : 00035781000796 FinishType : Silver IncludedComponents : No ItemName : Dry Diamond Drill Bits Set, 6PCS Small Diamond Hole Saw Kit with 2PCS Carbide Drill for Ceramics Granite Marble Porcelain Tile Stone Glass (not for Wood) 1/4, 5/16, 3/8, 1/2, 9/16, 5/8 inch ItemPackageDimensions_Height : 10.1092 centimeters ItemPackageDimensions_Length : 2.5908 centimeters ItemPackageDimensions_Width : 9.398 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hole-saw-sets Manufacturer : ZongHan Direct Material : Diamond ModelNumber : E0212167 NumberOfItems : 6 PackageLevel : unit PartNumber : TM0149 Pattern : Drill Bit Size - 3/8" ProductDescription : Dry Diamond Drill Bits Set 6 PCs Small Diamond Hole Saw Kit for Granite Marble Porcelain Tile Ceramic Stone Glass Hard Materials (not for Wood) Round Shank 1/4, 5/16, 3/8, 1/2, 9/16, 5/8 inch ProductSiteLaunchDate : 2023-05-05T07:13:20.914Z Size : K4-9pcs Style : Industrial SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Glass,Porcelain,Stone,Wood SurfaceRecommendation1 : Stone SurfaceRecommendation2 : Tile SurfaceRecommendation3 : Cer SurfaceRecommendation4 : Masonry UnitCount : 6