This is a template attribute. Template attributes can be used in filtering, or to retrieve data from the model to use in drawings and reports. For example, when you create a report, Tekla Structures replaces the attributes added in the report template with the corresponding object property values.

Shows the depth of bolt holes. The hole depth is measured from the bolt/hole reference points (yellow and magenta handles).

Use with the HOLE content type, for example, to report the depth of blind holes that do not extend completely through parts.