Specification Brand : HIGHDRIL BulletPoint1 : Diamond drill bit: diameter 1/4 Inch(6mm), diamond length 8mm, Quick-fit Hex Shank, suitable for a variety of quick-change chucks. Carbide drill bit: diameter 1/4 Inch(6mm), blade length 45mm, total length 77mm. BulletPoint2 : Multi-purpose for drilling of hard materials especially tiles, porcelain, granite, ceramic, glass, mirror, marble, stone, masonry, brick (not for wood) BulletPoint3 : Wax are inserted to the diamond drill bit for cooling and lubrication without adding water. Designed with hole and groove in the side of drill bit for removing stone chips. BulletPoint4 : Hex-shank design can be gripped tightly that won't slip out easily. Widely used in hand drill, bench drill, angle grinder drill(please install angle grinder drill chuck). BulletPoint5 : Carbide Drill Bit: It can solve the problem of drifting and walking of diamond drill bit for you. Provide you with more accurate drilling positioning and easier drilling. Color : Blue CompatibleMaterial1 : Ceramic CompatibleMaterial2 : Porcelain CompatibleMaterial3 : Marble CuttingAngleString : 1/4 inches ExternallyAssignedProductIdentifier1 : 791180057907 ExternallyAssignedProductIdentifier2 : 0791180057907 GpsrSafetyAttestation : 1 ItemName : HIGHDRIL Dry Diamond Drill Bits - 6Pcs 1/4 inch (6/6/6/6/6mm+6mm carbide drill bit) Diamond Core Drill Bits Set with Quick-fit Hex Shank for Granite Marble Porcelain Tile Ceramic Dekton ItemPackageDimensions_Height : 0.4 inches ItemPackageDimensions_Length : 3 inches ItemPackageDimensions_Width : 2 inches ItemPackageQuantity : 6 ItemTypeKeyword : core-drill-bits Manufacturer : HIGHDRIL Material : Diamond Material1 : Diamond Material2 : Carbide ModelNumber : JT01032-5-3/8-1 NumberOfFlutes : 1 NumberOfItems : 6 PackageLevel : unit PartNumber : HD123906402203 ProductDescription : Transform 5/8"-11 female arbor to 3/8" hexagon male shank, Can be use to connect to compatible power tools and hand tools, such as 5/8-11 female threaded core drill bits, hole saws, cup grinding wheels, other compatible tools ProductSiteLaunchDate : 2023-02-16T02:04:17.722Z Size : 6pcs 6MM*5+6MM*1 Style : Compact SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Aluminum SurfaceRecommendation1 : Tile SurfaceRecommendation2 : Brick SurfaceRecommendation3 : Masonry UnitCount : 6 UnspscCode : 27111700