By A Mystery Man Writer
The Position tolerance is the GD&T symbol and tolerance of location. The True Position is the exact coordinate, or location defined by basic dimensions or other means that represents the nominal value. In other words, the GD&T "Position" Tolerance is how far your feature's location can vary from its "True Position".
True Position – Position Tolerance GD&T Basics
The example of the tolerance specification when the datum feature
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Position Tolerance
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True Position – Position Tolerance GD&T Basics