Help needed with understanding accuracy in measuring tools. I want to go straight :-)

[Boyan Silyavski]

Thanks a lot for the info!

The Maun edge if happens to be from hardened steel/ still no info/ , could be good for drawing straight lines
Here is the drawing from their web:



I will stay with the magic number.
Will fiddle until the end of the week and if nothing more interesting jumps, will buy from Germany. They answered me and told me that the scale also is a straight edge. Yes, i wanted beveled, scale and hardened and inox but ...$$$.