Chapter 9 Profile Tolerances 321 When the profile tolerance is not equally split on each side of true profile, the total profile tolerance value is placed before the unequally disposed symbol in the feature control frame and the value of the tolerance that adds material to the feature or part is placed after the unequally disposed symbol. The feature control frame is connected to the edge view of the surface with a leader line as shown in Example 9-6. This is the preferred ASME Y14.5 use for this application. The Drawing The Meaning Value of the profile tolerance that adds material to the feature or part Unequally disposed symbol Total profile geometric tolerance True profile 0.5 true profile tolerance 0.3 value of the profile tolerance that adds material to the part Example 9-6. An application of an unequally disposed profi le tolerance.