Specification Brand : QWORK BulletPoint1 : High Quality: The concrete hole saw kit is made of durable tungsten steel and carbide, high-frequency welding technology, very strong and durable, easy to operate, easy to use, fast perforation, very suitable for cutting induction holes in concrete, brick walls. BulletPoint2 : 9 Pieces Concrete Hole Saw Kit: 5 Pcs hole saws: 1-2/11"(30mm), 1-3/5"(40mm), 2-9/16"(65mm), 3-5/32"(80mm), 3 - 15/16"(100mm); 2Pcs SDS connecting rod: SDS 11-13/16"(300mm), SDS Max 11-13/16"(300mm); 2pcs center drill bit 4-1/3"(110mm ). BulletPoint3 : SDS Shank: Contains SDS Plus and SDS Max connecting rods, widely compatible with different hammer drill tools on the market, greatly increasing the drilling speed, making your hammer drill even more useful than it already was. BulletPoint4 : Multiple Uses: The Professional Hole Saw Kit can easily drills through most common wall materials (brick, adobe, concrete, cement, and stone). Widely used for drilling walls or installing air conditioner pipes, water pipes, exhaust hoses, ewer pipes, and more. BulletPoint5 : 100% Satisfaction: Enjoy a smooth & worry-free return service within a month! Any questions feel free to contact us, we will do our best to help you. BulletPoint6 : If the materials are too much hard, like hard granite, hard rocks, recommend use this diamond bit with water to get longer working life CompatibleMaterial1 : Aluminum CompatibleMaterial2 : Stone CompatibleMaterial3 : Metal CompatibleMaterial4 : Wood ExternallyAssignedProductIdentifier1 : 0795973614223 ExternallyAssignedProductIdentifier2 : 795973614223 FinishType : Titanium IncludedComponents : diamond hole saw kits with case and adapters ItemName : QWORK 9-Piece Concrete Hole Saw Set, Tungsten Steel Drill Hole Cutter Set, with 30 40 65 80 100 mm Hole Opener, SDS Plus & Max Shank, for Concrete Cement Brick Stone Wall Drilling ItemPackageDimensions_Height : 32.3 centimeters ItemPackageDimensions_Length : 10.2 centimeters ItemPackageDimensions_Width : 26.8 centimeters ItemPackageQuantity : 10 ItemTypeKeyword : hole-saw-sets Manufacturer : QWORK Material : Diamond&steel ModelNumber : WD15074 NumberOfFlutes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : WD15074 ProductDescription : QWORK ProductSiteLaunchDate : 2023-08-14T10:13:07.817Z Size : 18Pcs Hole Saw Set Style : 6/8/10/12/16/20/25/35/55/68mm SupplierDeclaredDgHzRegulation : other SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SurfaceRecommendation : Concrete SurfaceRecommendation1 : Stone SurfaceRecommendation2 : Tile SurfaceRecommendation3 : Cer SurfaceRecommendation4 : Masonry UnitCount : 9