The feature control frame is related to the considered feature by one of the following methods and as depicted in Fig. 3-25:
(a) locating the frame below or attached to a leader-directed callout or dimension pertaining to the feature;
(b) running a leader from the frame to the feature;
(c) attaching a side or an end of the frame to an extension line from the feature, provided it is a plane surface;
(d) attaching a side or an end of the frame to an extension of the dimension line pertaining to a feature of size.
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