I made this tool using Grim Workshops’ survival “Axe” tool which also has a small saw on it, a paracord bracelet and whatever other materials I could find laying around. The axe is about 16″ long overall, it was made from a sapling I found that I cut and then hammered the axe head into. I then lashed together. the stronger the materials you can use to bind it the better the results will be so optimally I would use some kind of wire or more permanent lashing material to make it last longer if that option is available.
The saw I used to cut the sapling was just a small sawblade that comes with our axe tool with a paracord knot tied on each end. You could make a much more complex version but I try to keep a balance between simplicity and effectiveness. Although it was a very small tool it was nonetheless very effective for its size.
This tool is a light duty hatchet or self defense tool. I use it alot for building other items, you can also attach a spike, to the back for self defense, something like an arrow or spear tip, or tie a rock onto the backside so you can use it like a hammer too.
You can find the tools i used here