Total runout provides composite control of all surface elements. For surfaces around a datum axis, including:
Circularity (Roundness)
Straightness
Coaxiality
Angularity
Taper
Profile of a Surface
For surfaces perpendicular to a datum axis it includes:
Perpendicularity
Flatness
In the example shown, the entire surface must lie within the 0.04mm wide (Full Indicator Movement) tolerance zone when the part is rotated 360º about the datum axis.
