This instructable is on how to make a knife out of an Exacto Blade or surgical blade.
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Step 1: Materials
You need a stick, small rope (I used the inner strands of paracord), and a surgical or Exacto blade.
Sand one end of the stick with a large rock.
Step 3: Split the Stick
Next, place the blade in the middle of the stick and baton it about half of an inch down.
Step 4: The Blade
Put the blade in so that it fits snug.
Step 5: Lashing
Start tying it VERY tightly and once you're done finish it with an overhand knot.