I’ve been using PFI’s Z-Blade for several years now and have found them to be VERY handy. Not long ago I decided to write a review on this helpful tool over at Survival Life so hop on over there and give it a look. It is a great tool to have on-hand around the house and in your various kits. I own a bunch of them and they have also proven to be popular gifts. Give it some thought and consider buying some for your preparations.