I have never seen it before, but it looks like one of those tools that is designed to do so many jobs, that it can't do a single one well.
Used to have one of those I picked up in a surplus store years ago, very fine tool. Lost it on a kegger/camping trip. Regret it to this day.I have the Mil equivalent of the Woodsmans pal from a survival kit and found it was about the best brush tool I've ever used.