Specification Brand : Value Collection BulletPoint1 : Fill Material Brass BulletPoint2 : NonPiloted BulletPoint3 : Flared BulletPoint4 : Maximum RPM 15000 BulletPoint5 : Shank Diameter (Inch) 1/4 CompatibleMaterial1 : Stainless Steel CompatibleMaterial2 : Alloy Steel ExternallyAssignedProductIdentifier1 : 0707326008757 ExternallyAssignedProductIdentifier2 : 707326008757 ItemName : Value Collection - 4" Diam Flared End Brush - Medium Grade, 1/4" Shank Diam, 15,000 Max RPM (7 Pack) ItemPackageQuantity : 7 ItemTypeKeyword : abrasive-cup-brushes Manufacturer : Value Collection Material : Brass NumberOfItems : 7 NumberOfPieces : 30 PartNumber : 74038415 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 : 2020-01-03T04:10:47.172Z UnitCount : 1