Specification Brand : KURSTOL BulletPoint1 : 【Package Includes】11 PCS in total:7pcs Tile Hole Saw 1/4",3/4",1",1-3/8",2"(6/6/6/20/25/35/50mm)+1pc 2"(50mm) Diamond cone for grinder+1pc 3/4"(20mm) Diamond coated milling bit+1pc SDS Adapter to 5/8-11" thread+1pc 4-1/2"(115mm) Diamond cutting blade BulletPoint2 : 【Vacuum Brazed Diamond Technology】More Heavy Duty and Wear Resistant than electroplated diamond bit,provide very high efficiency,cuts faster,durable and sturdy. BulletPoint3 : 【Wide Compatibility】Diamond drill bit set for Wet/Dry Drilling/Shaping/Enlaging/Cutting on various materials,like Porcelain Ceramic Tile Granite Marble Stone. BulletPoint4 : 【Conveniently】Box packaging for easy storage and portability.Reasonable product collocation meets most work demands.If you have any problem when you use the product, please feel free to contact us for satisfactory customer service. BulletPoint5 : 【Machine】Compatible with most angle grinder/driller,use the adapter to switch freely between the two machines.Do not use impact mode if switching to equipment with impact mode!Angle grinder:Recommend 6000 RPM,Max 11000 RPM,100mm and Above Recommend 3000 RPM,Max 6000 RPM.Driller:Recommend 2000-5000 RPM,Max 5000 RPM,The faster the better. Color : K7 11PCS Color1 : Silver Color2 : Black CompatibleMaterial : Concrete, Brick, Stone CuttingAngleString : 45.0 degrees ExternallyAssignedProductIdentifier1 : 618838420046 ExternallyAssignedProductIdentifier2 : 0618838420046 ExternallyAssignedProductIdentifier3 : 00618838420046 FinishType : Diamond GpsrSafetyAttestation : 1 IncludedComponents : Core Bit *1; 3 Adapters to SDS Plus, SDS Max, and 1/2 Hex Shank; User Manual*1 ItemDisplayDimensions_Length : 2 centimeters ItemDisplayWeight : 0.05 pounds ItemName : KURSTOL Diamond Core Drill Bits Kit - 6/6/6/20/25/35/50mm+2" Beveling Chamfer Bit+3/4" Finger Milling Bit+SDS Adapter to 58-11" Thread+4.5" Cutting disc for Porcelain Ceramic Tile Granite Marble ItemPackageDimensions_Height : 24.7 centimeters ItemPackageDimensions_Length : 12.4 centimeters ItemPackageDimensions_Width : 20.3 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : core-drill-bits Manufacturer : KURSTOL Material : Diamond Material1 : Diamond Material2 : Alloy Steel ModelName : IW10507229 ModelNumber : 2 1/2" dry core drill bit NumberOfFlutes : 2 NumberOfItems : 11 NumberOfPieces : 1 NumberOfTeeth : 72 PackageLevel : unit PartNumber : K2115L16 ProductDescription : Our diamond tools are suitable for those Professionals or DIY enthusiasts,like the Builders,Tilers,Carpenters,Tinker,Roofers,Architects etc. When renovating your kitchen or bathroom walls or fastening mirrors in bathroom or installing shower, you will need to drill holes on mirrors or tiles without cracking them, hence you will need to use these small Dry Diamond Drill Bits to make those holes very precise by our diamond finger bit or chamfer bit. They're your best choice and gifts. Package includes: 7pcs Tile Hole Saw 1/4",3/4",1",1-3/8",2"(6/6/6/20/25/35/50mm):5/8-11 Thread,Diamond height 10mm,Total height 60MM. 1pc 3/4"(20mm) Diamond coated milling bit:5/8-11 Thread,Diamond height 50mm,Total height 65MM. 1pc 2"(50mm) Diamond cone grinder:5/8-11 Thread,Diamond height 46mm,Total height 55MM. 1pc 4-1/2"(115mm) Diamond cutting disc:Thickness 1.2mm,Arbor:22.23mm(7/8") with a reducer washer 15.875mm(5/8"). 1pc SDS Adapter to 5/8-11" thread Application: Dry / wet drill for ceramic tile, granite, marble, stone, etc Features: 1. It can be used for dry drilling and wet drilling, with various functions to meet the use needs of different scenes, and suitable for a variety of materials; 2. Vacuum brazing technology is adopted for production, which greatly improves the working life and has high cost performance; 3. High quality base steel and high-quality diamond provide high-strength operation support to improve the efficiency and wear resistance of hole drilling; PLEASE PAY ATTENTION : 1. Do not use impact mode if switching to equipment with impact mode; 2. Use the suction cup positioner to accurately locate the drilling position, or place the drilling hole at a 45 degree angle, move the drilling hole in a circular motion until the drill bit starts to penetrate the material, and then lift the drill bit to the vertical position and continue;