Form tolerances and positional tolerances are used to ensure the functioning and exchangeability of workpieces and assemblies. Form tolerances limit the permissible deviation of an element from its geometrically ideal dimension. Positional tolerances are direction, location and run-out tolerances. They limit the permissible deviations of two or more elements from the ideal position in relation to one another.
Surface characters are used to describe the requirements on the surface finish of parts. For example, they provide information about the processing method, the required roughness and so on. They consist of a graphical symbol for specifying the surface condition and additional text information for other surface parameters.
A surface symbol is a combination of several 2-D line elements. The Symbol functions work in the same way as the same-named 2-D functions.
Marking of workpiece edges according to DIN ISO 13715.
opens a menu with further functions. 
