Specification Brand : Osborn BulletPoint1 : Fill Material Steel BulletPoint2 : Wire Type Knotted BulletPoint3 : Bridled No BulletPoint4 : Overall Length (Inch) 2-3/4 BulletPoint5 : Shank Included Yes CompatibleMaterial : Wood CompatibleMaterial1 : Aluminum CompatibleMaterial2 : Wood CompatibleMaterial3 : Alloy Steel ExternallyAssignedProductIdentifier1 : 0707326014741 ExternallyAssignedProductIdentifier2 : 707326014741 ItemName : Osborn - 3/4" Diam Knotted End Brush - 1/4" Shank Diam, 20,000 Max RPM (2 Pack) ItemPackageQuantity : 2 ItemTypeKeyword : abrasive-cup-brushes Manufacturer : Osborn Material : Brass NumberOfItems : 2 NumberOfPieces : 2 PartNumber : 00126573 ProductDescription : Steel is the most common filament/wire material due to its durability and cutting action. It is suitable for general purpose applications and can be used on iron, steel, aluminum, brass, copper, and wood. Knotted brushes are made up of multiple filaments/wires bundled together to provide the most aggressive brushing action. ProductSiteLaunchDate : 2020-01-03T04:10:29.488Z UnitCount : 1