DIY fix for magnet damaged CRTs

I've seen this happen over the years, and it isn't pretty if it's your own screen. But one of our readers shows us a little DIY for fixing this damage in the video above. Almost TOO easy, if you ask me... though I guess fitting a magnet to a drill isn't the simplest of hacks.

Is this fix old news, or is this one clever SOB?

Thanks Mike.