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Profile - Location of Planes

Total Runout

Another Profile - Location of Planes Tip

Another Total Runout Tip

   Don't Give Runout More Credit Than it Deserves. 

Both circular and total runout are usually economical tolerances to use when controlling the location of cylinders with respect to a datum axis. The runout controls do not, however, control the location of planes and contours even when basic dimensions are applied. Using Profile of a surface rather than runout ties the surface location to the basic dimension.

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