Specification Brand : HBKEEN BulletPoint1 : {Core Drill Bit Extension Specification} 12 inch length standard core drill bit extension with 1 1/4"-7 thread for use with diamond core drill bits. BulletPoint2 : {High Quality} Chemical black coating on the surface of core drill bit extension for rust protection and long term preservation. High grade steel, strong and durable. BulletPoint3 : {Wide Application} Core drill bit extensions are Convenient for fast assembling for diamond core drill bits to drill deeper in concrete, reinforced concrete, brick, block and masonry. BulletPoint4 : {Drilling method} Compatibile with 1-1/4”-7 thread core drill bits and drilling machines. Work both dry and wet with core drill. BulletPoint5 : {Humanized Service} Any product use and quality problems in the process of drilling bits, please consult us in time, we hope that you have a pleasant shopping experience. BulletPoint6 : No core bits included, just the water ring with black rubber gasket installed. Color : Black CompatibleMaterial1 : Porcelain CompatibleMaterial2 : Marble CuttingAngleString : 90.0 degrees ExternallyAssignedProductIdentifier1 : 0791180057884 ExternallyAssignedProductIdentifier2 : 791180057884 FinishType : Black GpsrSafetyAttestation : 1 IncludedComponents : (1) Core Bit ItemName : HBKEEN Core Drill Bit Extension 12 Inch, Diamond Core Bits Extension with 1-1/4”-7 Thread, Round Core Bit Extension for Use with Core Drill Bit for Drilling Concrete, Reinforced Concrete (Round) ItemPackageDimensions_Height : 43.18 centimeters ItemPackageDimensions_Length : 6.35 centimeters ItemPackageDimensions_Width : 6.35 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : core-drill-bits Manufacturer : HBKEEN Material : High Grade Steel Material1 : Blend Material2 : Blend Material3 : Blend Material4 : Blend Material5 : Blend ModelNumber : [PO] 43964-* NumberOfFlutes : 2 NumberOfItems : 12 NumberOfPieces : 1 PackageLevel : unit PartNumber : JCG12Y Pattern : Solid ProductDescription : HBKEEN Core Drill Bit extension with 12 inch effective length, diamond core drill bits with 1-1/4"-7 thread for use with core drill bit for drilling concrete, reinforced concrete, brick, block and masonry. ProductSiteLaunchDate : 2023-08-12T09:29:11.996Z Size : 12 inch Style : Round SupplierDeclaredDgHzRegulation : not_applicable SurfaceRecommendation : Brass,Glass SurfaceRecommendation1 : Concrete SurfaceRecommendation2 : Brick SurfaceRecommendation3 : Masonry SurfaceRecommendation4 : Masonry UnitCount : 1 UnspscCode : 27111700