A very robust, mini shovel. That's the main purpose but there is a knife and screwdriver also rolled into it as well.
A handle extension which can mean you can use it as a walking pole if the situation ever demanded it (you might be on your EPIRB by now) .
Building the 4th pyramid of Giza. Conceivable use as a fish scaler. Knife. Screwdriver. and a few other things. Chances are you are mainly going to want to use it to dig those personal latrine pits, the drainage trenches around your bivvy, and hack out some light scrub to make your camp site a bit more comfortable. A very handy light tool to have to hand for car camping as well, without having to pack the garden shovel.