I use a Ryobi drill press with 1mm bits every day. It works great and I highly recommend it.
Thanks for the quick reply. Home Depot it is then...
Do you mind sharing details on this? I had similar in mind (dremel-out faceplate of RD-9000, paint it black), but lack of tools and experience has stopped me. Drilling out pins and then assembling everything together are a major concern. I'm sure other people would be interested too.
Largely experimenting on a 9070 used RD I bought from fleebay, for the time being.
Disassembling the servo and pulley cage out were simple. Taking out the inner spring is not a big deal either. That leaves a few pieces of small(er) metal pieces connected in a loop. Three of those parts (one connecting to the rear hanger, one middle piece, and one where the servo is) are over built, IMO. Well, I guess they are build to take impact in crashes. But there are a lot of excess weight on those three.
I simply disconnected them from the smaller looping parts (I'll post some pictures tomorrow) and started experimenting. The body of the parts are easily grindable with a dremel. I think I can easily get 40-50 grams out from them.
The issue is how to paint them. For powder coating, I have to separate them. Unfortunately they are hold together with pins/rivets (actually there are 4 of those...) I've tried a dremel router. The bit goes through the softer material of the body of RD, not the pins (I am glad I got the RD from fleebay.)
So I definitely need a much much more stable platform than a dremel router. This week I'll try with a press drill and see how it goes.