Unless otherwise specified, the limits of size of an individual feature of size control both the size and the form (shape) of that feature.
A rectangular box that serves as the primary "sentence" for GD&T. It contains the geometric symbol, the tolerance value, material modifiers (like MMC or LMC ), and datum references. Dimensioning and Tolerancing ASME Y14.5M-1994
The standard organizes geometric controls into several functional categories to manage different aspects of part geometry: Typical Controls Straightness, Flatness, Circularity, Cylindricity Unless otherwise specified, the limits of size of
Dimensions and tolerances typically apply when the part is in its "free state" and not being forced or bolted down. Key Components of GD&T in Y14.5M-1994 Unless otherwise specified
