Wires conform to Federal Specifications GGG-W-366b for Grade A Master Gear Wires, and are guaranteed traceable to the National Institute of Standards and Technology.
Diameter Tolerance: plus or minus ten millionths of nominal “standard” diameters listed.
Roundness: 10 millionths per Standard GGG-W-366b for Grade A Master Wires.
Surface Finish: 1 Micro inch, lapped.
Each set of two wires is contained in a screw-top vial, the vial is packaged in a hinged-lid box which is labeled to show pitch, internal or external, and the nominal diameter of the wire (also shown on the Certificate of Accuracy contained in each set box).
PLEASE NOTE: Deltronic is no longer shipping Backorders at No Cost