Center Hole UNI 3221

What        

Allows you to insert a center hole into the drawing in accordance with UNI 3221 standard.

Why        

It is used to quickly insert a standard-compliant UNI 3221 center hole into the drawing.

How

Once the command is started, you are prompted through an interface to select the size to insert.

From the command line, it is also possible to specify whether to represent the hole in detail or to insert only a schematic reference.