Specification Brand : Norton BulletPoint1 : The Speed-Lok quick-change system allows for easy disc mounting and removal to maximize productivity BulletPoint2 : Aluminum oxide is durable and the most common abrasive grain BulletPoint3 : Heavy cotton backing is heat-resistant, durable, and flexible, for use on contours or flat surfaces BulletPoint4 : TR discs have threaded central hubs that require two-and-a-half turns and mount to Norton TR or 3M Roloc TR backing pads BulletPoint5 : This disc is used with a molded rubber backing pad (sold separately) Color : Multi CompatibleDevices : Die Grinder ConstructionType : Coated CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 662611210195 ExternallyAssignedProductIdentifier2 : 0662611210195 ExternallyAssignedProductIdentifier3 : 30662611210196 FasteningType : Plastic Thread Quick Change GpsrSafetyAttestation : 1 IncludedComponents1 : 4-1/2 in. Fiber Disc IncludedComponents2 : 4-1/2 in. Fiber Disc IncludedComponents3 : 4-1/2 in. Fiber Disc IncludedComponents4 : 4-1/2 in. Fiber Disc IncludedComponents5 : 4-1/2 in. Fiber Disc IndustryStandardIdentifier : R228 ItemName : Norton R228 Metalite Speed-Lok Abrasive Disc, Cloth Backing, TR, Aluminum Oxide, 2" Diameter, Grit 36 (Pack of 100) ItemPackageDimensions_Height : 10.922 centimeters ItemPackageDimensions_Length : 21.844 centimeters ItemPackageDimensions_Width : 11.176 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : fiber-backed-abrasive-discs Manufacturer : St. Gobain Abrasives Material : Aluminum Oxide Material1 : Aluminum Oxide Material2 : Rubber Material3 : Silicon Carbide Material4 : Cotton Material5 : Blend MaximumRotationalSpeed : 13300 rpm ModelName : DCF045024S04G ModelNumber : 66261121019 NumberOfItems : 100 PackageLevel : unit PartNumber : 66261121019 Pattern : Solid ProductDescription : The fiber sanding disc is made of ceramic material with better cutting efficiency, which has higher hardness and cutting efficiency, and can still maintain good grinding performance at high temperatures. The surface quality processed by ceramic grinding discs is higher and can achieve better smoothness. It is suitable for work that requires fine surface treatment, such as pre-grinding and polishing of metal products, or fine grinding of welds. Fiber grinding and polishing discs are widely used in the processing of metal materials, including stainless steel, alloy steel, non-ferrous metals (such as aluminum or brass), cast iron or wood crafts, etc. Simply attach the disc to your angle grinding or power tool, and use it only with the backing pad and nut, then gently place it on the surface that needs to be trimmed or polished, working with the appropriate speed and pressure.