angle grinder/die grinder?

I take apart many compressors, but they are the ones from refrigerators and freezers. I prefer not to mess with the AC compressors as the windings on the motors have a heavy coating of varnish/shellac, and are a pain to mess with. The windings on the fridge compressors do not have this same coating, so it is easy to cut and remove the windings from the steel they are wrapped around. I use a angle grinder from Harbor Freight (around $15), and thin metal cutoff blades, again from Harbor Freight ($8 for a pack of 10). Have not had a problem with either, and can generally cut open 2 1/2 to 3 compressors with one blade.