Controls the shape of a feature regardless of its location or orientation. Parallelism, Perpendicularity, Angularity Controls the rotation of a feature relative to a datum. Location Position, Concentricity, Symmetry
The standard relies on several fundamental rules that guide how dimensions and tolerances are applied: Dimensioning and Tolerancing ASME Y14.5M-1994
Imaginary, mathematically perfect points, axes, or planes used as reference points for measurements. Controls the shape of a feature regardless of
Unless otherwise specified, the limits of size of an individual feature of size control both the size and the form (shape) of that feature. mathematically perfect points