Tom, I sorta agree with you.
This "Asian" machine's spindle is on an air bearing .
It gives me the impression that the "air bushing" can deviate depending on the operator's influence as the spindle is drawn back.
Even the "needle" that the flute follows allows for inaccuracy.
I generally relegate the re- ground mills to less than precise work, (which ,sigh, is what most of mine is).
This "Asian" machine's spindle is on an air bearing .
It gives me the impression that the "air bushing" can deviate depending on the operator's influence as the spindle is drawn back.
Even the "needle" that the flute follows allows for inaccuracy.
I generally relegate the re- ground mills to less than precise work, (which ,sigh, is what most of mine is).
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.