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- Tolerance
Commonly three wires within each set are within five millionths
(.000,005"), of calibrated size;
- Set diameter is
plus or minus 20 millionths (.000,020") .0005mm of "best" wire size and
calibrated to the nearest 10 millionths (.000,010"), of exact size:
- Roundness is
within 10 millionths (.000,010") .00025mm;
- Surface Finish
is better than 2 microinches AA, lapped;
- Hardness, RC
62-64 stabilized; Straightness of the central 1/2" of the wire's length is
within 10 millionths (.000,010"), maximum deviation.
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