Specification Brand : Made in USA BulletPoint1 : Fill Material Brass BulletPoint2 : NonPiloted BulletPoint3 : Flared BulletPoint4 : Maximum RPM 15000 BulletPoint5 : Shank Diameter (Inch) 1/4 CompatibleMaterial : Alloy Steel ConstructionType : Coated ExternallyAssignedProductIdentifier1 : 0707326007576 ExternallyAssignedProductIdentifier2 : 707326007576 IndustryStandardIdentifier : Type 27 ItemName : Made in USA - 3" Diam End Brush - 1/4" Shank Diam, Steel Shank, 15,000 Max RPM (4 Pack) ItemPackageQuantity : 4 ItemTypeKeyword : abrasive-cup-brushes Manufacturer : Made in USA NumberOfItems : 4 PartNumber : 08780215 ProductDescription : Brass is softer than steel and stainless steel and will not scratch harder surfaces. It will not generate sparks when brushing metallic surfaces and works best on copper and brass. ProductSiteLaunchDate : 2020-01-03T04:10:42.721Z