Specification Brand : NEFLUM BulletPoint1 : * Hight quality diamond grinding disc make grinding more stable aggressive and durable BulletPoint2 : * Aluminum base provide light weight and lower noise BulletPoint3 : * Less jitter, makes work smoother BulletPoint4 : * Resin filled help to get better finishing, less scratch. BulletPoint5 : * Balanced by Dynamic Balancer, effectively reduce the high speed vibration ConstructionType : Coated ExternallyAssignedProductIdentifier : 9966070196122 ItemName : 1 Piece 4 Inch Diamond Grinding Cup Wheel 100mm Resin Filled Aluminum Based Sanding Disc for Stone Granite Marble Concrete,M14 Thread ItemTypeKeyword : sanding-blocks Manufacturer : NEFLUM PartNumber : NEFLUM9966070196122 ProductDescription : Diamond Grinding Cup wheel is designed for fast rough dry or water cooling grinding and shaping of stone granite/marble and concrete surfaces, edges and angles, comes in aluminum base providing light weight and fast cooling effect by high conductivity