Err, maybe.
Those little cutting discs do more work than you would expect, but I've probably gone through twice as many as I needed to just by putting the Dremel down on the desk/floor and just snapping them - they're very weak to out-of-plane forces.
Remember - measure twice, cut once.
Also, that dremel is going to produce 1) sparks and 2) lots of metal dust. You may want to think how you're going to stop the inside of your tower form being coated in metal filings - they'll come back and haunt you later if you let them, probably by shorting out the most expensive piece of hardware they can find.
Good luck, have fun, and try to end up with the same number of fingers you started the job with. And eyes.
