transatlantic":a9ubigh7 said:
As the end of the threaded part has a lot of surface area (M10 or so), and is not flat, as it would rotate it would shift things. I think it could be easily resolved by simply grinding the end of the thread to more of a point.
That wouldn't be a good solution. If you ground it to more of a point it would likely create a small dimple or depression when you tightened it down. If in the future you wanted an angle that was just a whisker different you wouldn't be able to set it as the thread would try and re-locate itself into the original dimple, so you'd either have to repeat the exact angle or avoid that depression entirely.
Fettling a power tool to increase accuracy and precision occasionally works, but most times it's just a waste of your time. Power tool quality is either built in at the beginning or it simply can't be realised.