microinch

microinch

(ˈmaɪkrəʊˌɪntʃ)
n
(Units) a millionth of an inch
References in periodicals archive ?
"Mass finishing methods, especially drag finishing, create perfect, blemish-free surface finishes with Ra [surface roughness] values of less than 1 microinch (i.e., knee femorals, femoral heads, the inside of acetabular cups)."
A typical 600-grit abrasive can produce a 6-10 microinch Ra (0.15 to 0.25 [micro]m) finish in a reamed barrel blank.
The finish is approximately 16 microinch After electropolishing, the grinding marks are reduced substantially, though still evident.
With regard to the surface roughness (Ra) of the interior surfaces, a roughness value of Ra [less than or equal to] 0.8 pm (32 microinch) has become standard.
Screw mounting ensures secure installations and 30 microinch gold-plated contacts provide reliable connections with repeated mating cycles.
All wetted plastics and elastomers (G 1-1/4 version only) are compliant with 21CFR177, and all wetted surfaces have a 16 microinch (0.4 micrometer) Ra finish.
system uses the microinch as a basis of measuring surface finish.
I opened the olde leaded PVCcoated window frame a microinch and squinted skywards to check the atmosphere for any stray anthrax spores (thought to be released under safe test conditions by British boffins circa 1946 on the now uninhabited Isle of Eiggnoig in the Slightly Inner Hebrides).
Cold plating on the leads, base and ceramic is 50 microinches minimum with a 100 to 350 microinch nickel underplate.
In data set 1, Timken again fared well in its comparison with NIST in that the difference from NIST in its measure of variance on any given block was within [+ or -]0.42 microinch. For three of the ten blocks in this set, the difference in variance between Timken and NIST was statistically significant at the p [less than or equal to] 0.05 level.