Specification Brand : Osborn BulletPoint1 : Fill Material Steel BulletPoint2 : With Pilot BulletPoint3 : NonFlared BulletPoint4 : Maximum RPM 25000 BulletPoint5 : Shank Diameter (Inch) 1/4 CompatibleMaterial : Iron CompatibleMaterial1 : Stainless Steel CompatibleMaterial2 : Alloy Steel ExternallyAssignedProductIdentifier1 : 0707326002205 ExternallyAssignedProductIdentifier2 : 707326002205 ItemName : Osborn - 1/2" Diam Pilot Bonding End Brush - 1/4" Shank Diam, 1/4" Pilot Diam, 25,000 Max RPM (4 Pack) ItemPackageDimensions_Height : 3.75 inches ItemPackageDimensions_Length : 1 inches ItemPackageDimensions_Width : 1 inches ItemPackageQuantity : 4 ItemTypeKeyword : abrasive-cup-brushes Manufacturer : Osborn Material : Brass ModelNumber : 36073SP NumberOfItems : 4 NumberOfPieces : 4 PartNumber : 00126730 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. ProductSiteLaunchDate : 2020-01-03T04:10:27.072Z UnitCount : 1