Mini Precision Ball Co.

Mini Precision Ball Co. supplies mini and micro precision balls for industrial applications, ranging from Grade 3 through Grade 500, across a wide range of materials.

We focus on small-diameter balls used in valves, instrumentation, automation systems, and other precision mechanisms where material selection and consistency matter.

Diameters fall within the miniature and micro range, generally below 0.125″ (1/8″), including micro sizes down to 0.011811″.

Common material families include stainless steels (including 440C and 316/316L), chrome steels (52100 and vacuum-melt variants), carbon steels, and specialty materials such as tungsten carbide and select alloys. Additional materials are supported on an application-dependent basis.

You may submit a drawing to info@miniatureball.com.

For slightly more detail, see: Miniature Precision Balls.

RFQ: info@miniatureball.com