Which is better, lathe fitter, cylindrical grinder, wire cutting or milling cutter?

Electricians and grinders sit a little easier. After all, the nature of their work is different. They start the machine automatically and can sit and watch. Turn-milling fitter has to stand all the time, and the fitter has to do it himself ~ purely by hand ~ ~ If it is CNC turn-milling, it will be easier to cut wire. It's also easy to calculate ~ if the salary is high, the locksmith and thread cutting union in our factory are slightly lower. ..