I think many of us tend to run conservative speeds and feeds in the home shop.
I remember in USAF Machining school the lathe section we were required to calculate rpm for aluminum IIRC it was a 1" round bar and the calculated answer was something well over a thousand rpm . Then the instructor tell us to use something like 540 rpm.
The calculated rpm for a 1" aluminium bar on LMS calulator is 1910 I do not think I ever run that fast. And my shaper would likely be jumping if I used recommend speeds for aluminum. So conservative speeds are fine . but still leaves the question of what is too slow?
So can you run an 1/8 ball endmill at 2 k probably . Would faster be better ? yes.
You will soon discover that the limited Z travel will be a pain. Also taking the machine out of tram and then returning it to tram is a real pain on these mills. Does it have ball screw on all axis. I expect that they are still using the rack and pinion for the Z axis.
There are better machines out there. Tormach 770 is a very nice machine. It does cost more money, but you get what you pay for.
2k RPM for a 1/16' ball end mill is way slow. I run 1/16 at 18,000 on an high speed spindle on my machine.
Dave, that tormach 770 is $8000.00. I'm getting this machine for $2700. It's all I can afford right now, but I am thinking I may put a ballscrew on the z inside the column instead of having it driving the quill.
I think this machine has a vfd on the spindle, and it does have the jog pendant, one shot lube, cooling, bench/stand, and some tooling. Haven't seen it run yet and won't know if it does until I get it home.
But I think its a great start at a good price.
getting back to it yes you can run a .06 end mill at 2000 rpm just slow the feed down accordingly some thing towards 1 inch a min. and say soluble oil as a coolant cutting fluid I haven't really found the " you get what you pay for" actually works that well as a rule