Example pictures for adjusting run-out ofexchangeable Head endmills I



Example pictures for adjusting run-out of  Standard endmills II


a. Steps to adjust the run out:
   1 : At first please reach the scale to the tip of the cutter, as the accurate point shown in the picture.
   2 : Secondly, loosen the cutter holder by hand in counter clockwise, then add up all the tolerances among 
        each flute. It would be the run out to this cutter.

 b. The effect caused by run out to a cutter may bring to process:
   Run out may affect not only tool-change times but the roughness of material being milled. Once the run out is 
   raising, it may reduce the tool life and have cracks on it  while processing. On the other hand, the tool life is 
   been extended and the surface of material being milled is neat when the run out is getting lower.

 c. The Tolerance for the run out measurement caused by cutter’s elongation: 
 

Tool extension	Run out
L=0~30 mm	±0.005 mm
L=30~100 mm	±0.01 mm
L=100~180 mm	±0.015 mm
L=180~250 mm	±0.02 mm

Written by DHF Technology Center