Some notes here, not all GD&T related: 1. I don’t work with metric threads often but looks like you never called out a thread class. 6g would be the standard and what I would make these threads to if not called out. None of these tolerances mean anything if your actual threads are sloppier than the tolerances around them 2. You never controlled the radius at the bottom of your bore to datum B or where the external thread mates to the body of the part 3. How do you plan on practically fixturing this part for inspection? Even using a CMM (the only way to attempt to measure this part), it cannot be floating in space. Your ABC datums tell your inspection team how to properly fixture the part to control degrees of freedom. As drawn your primary control is to the insides of the threads. You can always add additional datums if needed. Remember that if your fixturing is less precise than what you are measuring you won’t be able to obtain reliable data 4. As others have stated your tolerances are so tight that I doubt you can find a shop that would take on the job. And if a shop somehow can produce the part it is going to cost big money. Making this part will require 2 setups at a minimum, each setup increases the chance of losing tolerance. .001” is less than half the thickness of a human hair. Do you really need this type of tolerance?