Specification Brand : Osborn BulletPoint1 : Fill Material Steel BulletPoint2 : Wire Type Knotted BulletPoint3 : Overall Length (Inch) 2-3/4 BulletPoint4 : Shank Diameter (Inch) 1/4 BulletPoint5 : Trim Length (Inch) 1-1/8 CompatibleMaterial1 : Aluminum CompatibleMaterial2 : Alloy Steel CompatibleMaterial3 : Wood ExternallyAssignedProductIdentifier1 : 0707326377129 ExternallyAssignedProductIdentifier2 : 707326377129 ItemName : Osborn - 3/4" Diam Knotted End Brush - 1/4" Shank Diam, 20,000 Max RPM ItemPackageQuantity : 2 ItemTypeKeyword : abrasive-cup-brushes Manufacturer : Osborn Material : steel NumberOfItems : 2 NumberOfPieces : 1 PartNumber : 00126565 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 : 2020-01-05T19:52:11.744Z UnitCount : 1