Sphere Engineers Pvt. Ltd manufactures Graded Precision Steel Balls. Sphere Engineers Pvt. Ltd is an ISO 9001:2000 certified company. Sphere Engineers Pvt. Ltd supplies wide range of graded precision steel balls, grinding, burnishing steel balls and other polishing media such as satellites, ball cones etc. Using different raw materials under the Brand name "Metro Balls". Graded Precision Steel Balls is suitable for the application in automotive industries, bearing industries, furniture industries, castor wheel industries, cosmetic industry for spray pump & agitating in nail polish, foundation bottles etc. For mixing and for many other applications. Graded Precision Steel Balls is made under stringent quality control from raw material stage to finish product stage to achieve desired dimensional control and very fine surface finish.