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Heres how to make a small survival knife from some bottle caps and a rivet.
Be careful with knifes.
And i am in the contest, so if you like it, please rate and vote.

Step 1: What You Need.

All you need are:
-3 bottle caps
- a pop riveter.
-a pair of pliers.
-a drill.

Step 2: Cutting the Cap.

Take one of your caps and flatten it, so you have a flat piece of metal.
Then using the cutting part of you pliers or a pair of tin snips, cut the cap so it looks like the picture.

Step 3: The Handle.

Step 4: Drilling the Hole.

Step 5: Riviting.

Step 6: Sharpening.

<p>So, the black piece is the blade?</p>
Paint the knife handle in enamel and sharpen the blade. <br>Your done.
Get a rivit the size of your hole and the lenth of the three pieces of metal and rivit them together so they dont move.
To drill the hole get a drill bit and drill the hole straight though all three pieces of metal the size of your rivit.
The idea is good, but the materials you are using are too cheap to get you something you can actually use.<br>A piece o real tool-steel costs near to nothing or can be scavenged/found around.<br><br>Note that pure iron cannot be heat treated, since it does not contain carbon.<br><br>Also note that your cuttig edge should be as flat/straight as possible, otherwise you'll hardly get an edge out of it, and it will be hard to cut (probably you'll end sawing)
Thanks EncySquare. I know that the materials are cheap and it is only meant to be used in an emergancy. But I am making an instructable on how to make a real carving knife soon so have a look at that when I've finished it. <br>
After doing this instructible I found out how to harden and temper steel by heating until it is orange, then quenching it int water or oil and finally tempering it at 400f. <br>So you can do that to make the blade hold an edge better.

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Bio: I'm a boy and a guitarist and love hacking, modding and tinkering. When I was young, I always used to make stuff and I ... More »
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