Posted: 7/14/2011 12:12:50 AM EDT
what is this see it often in adds?
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It's meaningless bullshit advertising. You could "air gauge" a barrel and it be completely fucked up but you still "air gauged" it  Now if they said "air gauged to within .0001 of x (a standard for their barrels that could be compared to others)" that would be different. |
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An air Gage has a probe with holes on each side that air is pushed out of that is just smaller than the hole you are checking. The Gage measures the pressure/resistance of the air coming out the 2 holes. You calibrate it by putting the probe in a known size ring, then insert it in the hole you are checking. The air pressure shows up as a line on the Gage. The line will show you what diameter the hole is and also concentricity if you turn the Gage.
It's been a few years since I used one, but that is what I remember. |
