Hi,

I need to to get a positive feature which is 100um diameter and
500um
long (a very small rod) with milling machine. I can use aluminum or
steel.
I wonder if it is possible? If so which material is better? I think
aluminum
is easy to cut but may be too flexible for a feature like this. Any
suggestions
on the cutting parameters are highly appreciated.

Thanks a lot!

Regards,

Tao