At first I was watching this video thinking it was a load of BS, until they got to the point and it clicked. Wow, this is genius. I thought it would come in handy cutting oddly shaped patch panels - though I've seen plenty of recommendation for avoiding sharp corners - this would still work with a little modification.
https://www.youtube.com/watch?time_continue=47&v=Cd2LY857oTY&feature=emb_title