Machine to polish aluminum parts

[Zouky]

Hi everyone,

I machine lots of helicopter parts by mill and lathe machines. However, due to some cracks on the tool bits that I get many scratches on the parts after machining. I can make them nicely by sanding down but I heard there is some machine functioning like a tumbling drying machine that can make the scratch on the surface of the parts go away.

Any info about that machine would be appreciated.

Andy