Specification Brand : Made in USA BulletPoint1 : Brush Diameter (Inch) 3/8 BulletPoint2 : Fill Material Brass BulletPoint3 : Filament/Wire Diameter (Decimal Inch) 0.0040 BulletPoint4 : Single Spiral BulletPoint5 : Helical CompatibleMaterial1 : Stainless Steel CompatibleMaterial2 : Alloy Steel ExternallyAssignedProductIdentifier1 : 0707326025549 ExternallyAssignedProductIdentifier2 : 707326025549 ItemName : Made in USA - 3/8" Brush Diam, 1" Brush Length, 3-1/2" OAL, Single Spiral Tube Brush - 0.004" Filament Diam, Brass Filament, Helical Brush, 0.11 Shank (8 Pack) ItemPackageQuantity : 8 ItemTypeKeyword : abrasive-cup-brushes Manufacturer : Made in USA Material : Nylon NumberOfItems : 8 PartNumber : 03715471 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 it works best on copper and brass. ProductSiteLaunchDate : 2020-01-03T04:10:32.810Z