Specification Brand : Sollar BulletPoint1 : Premium Material: The appearance of concrete hole saw adopts industrial-grade sandblasting technology,which has the function of rust prevention to ensure exquisite appearance no scratch. BulletPoint2 : Unique Design:Double chip removal hole effectively prevents debris clogging,external chute with threaded design removing debris easily,greatly improving work efficiency. BulletPoint3 : 2024 New Upgrade Process:The process of concrete hole saw has also been upgraded,equipped with Harden High Carbon Steel Boday Plus and YG9 Tungsten Carbide Tip,ultra-sturdiness and durable,easy to opearation,and long service life.Internal and external three edge,front and back angle design,layers component cutting,more accurate positioning. BulletPoint4 : Pakcage:Include only 1 x 115mm (4.5 inch) "drill bit(Not including 220 mm (8.66 inch) connecting rod, the Center positioning drill bit, positioning drill screw).Single plastic tube packaging,prevents the teeth of the concrete wall hole saw cutter from being hurt by external forces during transportation. BulletPoint5 : QUALITY SERVICE:If you are not completely satisfied for any reason of our concrete hole saw, please feel free to contact us via Amazon and we will provide you with an unconditional exchange or refund! BulletPoint6 : 【Recommended Machine】: For a 5/8"-11 thread angle grinder, use a recommended speed of 6000 RPM for discs under 100mm and a maximum of 11,000 RPM. For discs 100mm and above, the recommended speed is 3000 RPM, with a maximum of 6000 RPM. If you're using an electric drill or other machines, you can use the included hex or SDS adapter for compatibility Color : Silver CompatibleMaterial : Stone CompatibleMaterial1 : Metal CompatibleMaterial2 : Alloy Steel CompatibleMaterial3 : Porcelain CompatibleMaterial4 : Granite ExternallyAssignedProductIdentifier1 : 783310191469 ExternallyAssignedProductIdentifier2 : 0783310191469 ExternallyAssignedProductIdentifier3 : 00783310191469 FinishType : Diamond GpsrSafetyAttestation : 1 IncludedComponents : Tools & Accessories ItemDisplayWeight : 0.25 pounds ItemName : Sollar Concrete Hole Saw 115mm (4.5 inch) YG9 Tungsten Carbide Tip and Harden High Carbon Steel Body Plus for Concrete, Cement, Brick, Wall and Stone ItemPackageDimensions_Height : 2.9 inches ItemPackageDimensions_Length : 4.8 inches ItemPackageDimensions_Width : 4.8 inches ItemPackageQuantity : 1 ItemTypeKeyword : hole-saws Manufacturer : Sollar Material : Diamond Material1 : High Carbon Steel Material2 : Tungsten Carbide ModelName : 825-1-3/8 ModelNumber : 07b6607b-825f-4416-a202-442bdcfb102a NumberOfFlutes : 2 NumberOfItems : 1 NumberOfPieces : 1 PackageLevel : unit PartNumber : 4.5inch115mm ProductDescription : Sollar Concrete Hole Saw 115mm (4.5 inch) YG9 Tungsten Carbide Tip and Harden High Carbon Steel Body Plus for Concrete, Cement, Brick, Wall and Stone ProductSiteLaunchDate : 2023-08-22T01:46:45.230Z Size : 115MM(4.5inch) Style : Compact SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 SurfaceRecommendation : Ceramic,Porcelain,Stone SurfaceRecommendation1 : Metal SurfaceRecommendation2 : Stainless Steel SurfaceRecommendation3 : Wood UnitCount : 1 UnspscCode : 27112800