Hole Callout Standards
All default standards for hole callouts (ANSI, ISO, Din, etc.) are defined
in a text file under installation directory\solidworks\lang\<language>\calloutformat.txt.
If you require derived hole standards, you must define these in this
file as well.
To define a derived hole callout standard:
Locate and open calloutformat.txt.
Copy and paste content describing the ANSI standard.
Using only upper case letters, substitute the
new derived standard name for ANSI in this copied section of text in the
file.