Chapter 3 Datums 101 It is also possible to display multiple coplanar surfaces as a single datum by placing the datum feature symbol on the phantom line, or by attaching the datum feature symbol to a feature control frame that is connected to the phantom line by a leader. In Example 3-26, there are a total of 6 raised surfaces behind the two that can be seen in the front view. This is identified with the note “6 SURFACES” below the feature control frame. In this application, the surfaces are all controlled by a flatness geometric tolerance of 0.05 and they are also Datum D. A top view is also required to provide dimensions to the 6 raised features. Example 3-26. Specifying multiple coplanar surfaces as a single datum. Extension lines can be used or omitted Example 3-27. Sample drawings using the continuous feature symbol. For your reference, the continuous feature symbol can be used to identify any group of two or more interrupted features as a single feature. Example 3-27 shows sample drawings using the continuous feature symbol with dimension values.