Sphere Engineers Pvt. Ltd manufactures Burnishing Media Steel Balls. Sphere Engineers Pvt. Ltd is an ISO 9001:2000 accredited company. Burnishing Media Steel Balls is used to de-burr and polish the metal parts in rotary vibrators, vibro mills, centrifugal finishing machine and tumbling / polishing barrels in the metal finishing industry. Burnishing Media Steel Balls are better wear resistant compare to plastic and ceramic medias. These steel balls are available in round shape and are generally used for critical finishing applications. It is available in the size of 1.5mm and above.