I use mine for sanding a lot, and cutting nails or bolts where I can't get the sawz-all. Also the polisher is nice for gun parts, and other metal objects.
I've had the original dremel around 15 years I think it is now... awesome tool, and still going, made much better than the newer models but they still work great too

and I have one of them as well. Next up is I want a cordless
