I just knew this thread was coming ...... it was a matter of when.

Well its is possible but as you know very expensive and in a grade we do not use in the Uk.... Youtube Engineering strikes again! It's very rare unless its in the tooling world or something extreme we need these kind of tolerances. In ally welllll thermal expansion will take core of that tolerance. Walk it out the room and its done.

We really need a guide post on here for drawing, general engineering knowledge and realism.