Today in the wilds of Monrovia, CA I had to take apart a fan. It had no visible screws or other obvious points of assembly/disassembly. So what to do? Pry! I took the file/screwdriver and worked the circumference until I felt one side pop and then the other. Took 20 minutes! Finally the fan could be cleaned and reassembled. My wife has a clean desk fan and all is right with today. The Classic is that tool for that job you can't do any other way. Get one or 5!