It depends On what you are trying to carve/mill with your tool. To give an idea of what kind of power the dewalt is it is 600W.
The whole thing started with a foredom style knock off, that was 350W if I remember correctly. So I would try and get above that, then pay attention to run out and collet size.
There is not a one size fits all. If you are just carving foam -a cheap rotary tool is plenty, milling aluminum -500W+.
What Alternative 230V (240V) spindle have Australia Used?
Right now I looking to do so wood work (for that I will use my Dremel), but in the future I am looking to do some lite aluminium in the future - What Australian Available spindle/motor/router are people using?
I’m a bit late to the party I know, but I’m just curious how your MPCNC is going or if you moved on. I’ve just started building mine and I also think I am going to go for the Ozito 850W router you mentioned. Do you by any chance have a mount for it?