Specification Brand : Gesswein BulletPoint1 : Made of extra-sharp pure white aluminum oxide grains in a specially formulated bond & a proprietary treatment. BulletPoint2 : Cut well, hold their shape and resist loading. BulletPoint3 : Suitable for use on both EDM and machined surfaces of all tool and hardened steels. BulletPoint4 : IDEAL FOR INTRICATE POLISHING Excellent flexibility allows for polishing narrow ribs, slots, and grooves—perfect for detailed mold work and engraving cleanup. BulletPoint5 : TOOL COMPATIBILITY Designed for use with hand holders, air profilers, ultrasonic polishers, and other pneumatic or power-driven tools. BulletPoint6 : Wool Felt Pads: Wool felt polishing pads are made of natural compressed wool and synthetic fiber mixture, polishing performance is good, wear and durable, polishing gloss is good, polishing surface is uniform and smooth Color : Blue CompatibleMaterial : Stone CompatibleMaterial1 : Aluminum CompatibleMaterial2 : Stone CompatibleMaterial3 : Wood IncludedComponents : No ItemName : Gesswein GP (General Purpose) Finishing Stone Set - 12 Piece ItemPackageDimensions_Height : 0.2 inches ItemPackageDimensions_Length : 8.27 inches ItemPackageDimensions_Width : 4.72 inches ItemShape : Round ItemTypeKeyword : industrial-polishing-stones Manufacturer : Gesswein Material : Aluminum Oxide ModelName : DMP-4IN ModelNumber : 23-77222 NumberOfItems : 1 PartNumber : 4052095 ProductDescription : 12 piece sets of our most popular General Purpose (GP) stones in sizes 1/4"x1/4", 1/2"x1/8", 1/2"x1/4" and grits 220, 320, 400, 600 ProductSiteLaunchDate : 2016-11-01T21:48:10.080Z Size : #400 Blue SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 31191600