Thanks for input it is about a 4" hole with about a .25" flange. It would be strange if they listed that hole and flange in mm since all other dims are in inches. We will keep searching for answers.
thruthefence - yes I am with that company that has bought the 47 TC.
I need a little help here, I have a sheet metal part with a call out for a hole I believe. But I don't know what the call out means and have never seen it before. We are reverse engineering some old print into 3D and need help distiguishing some old terminology.
On the attached file the center...
