Description:Brass balls provide excellent resistance to corrosion by water, and they are substantially lower in cost than other corrosion-resisting balls.Brass balls also have the ability to resist the corrosive effects of fuel oil, gasoline, dry carbon dioxide, benzene, lime-sulphur mixture and similar chemical agents.Brass balls are frequently used in many types of valve applications requiring small-size balls.Specially useful for casters, drawer slides, door locks and many other applications.Suitable for a range of purposes, some of the most common are listed below:1/8" is often used for clusters and old English-style headsets1/4" is often used for rear wheels and bottom brackets3/16" is often used for front wheels5/32" is often used for headsets with pressing cupsSpecification:Size: 15mmTolerance: +/-0.015mmMaterial: BrassPackage Content: 5 Piece15mm in diameter Made of High Precision Brass Smooth surface precision balls. Lightly lubricated Good hardness and corrosion resistance Package includes 5 piece balls
