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I really feel bad for Grump on this topic.


Ok maybe not.  Grump, FYI there is a thing called class of fit. Look it up in the machinist handbook. Class of fit is the quality of fit be it super loose to you must press it in. The range is very large. 


Precise would be where you are unable to feel the edge of either metal part or blank where they union. It becomes almost trivial  do this when you bushings are very precise.


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