I Had an old multi tool that i never used , and never liked.

But i needed a small knife, so i cut the blade out of it and bought a 4mm steel rod.

Thats it , just throw in some scrap wood and i have a small knife!

Enjoy

Step 1: Scrap Wood, Knife Blade and Steel Rod

This is all you need, just make sure the steel rod is the right size for the hole in the blade.

Step 2: Cut Down to Size

To get the wood down to size i just ripped it down the middle and cut it down to a rough shape.

I also cut a small piece of the rod off making sure it would fit through both sides of the wood and the blade.

Step 3: Smooth Out Faces

Now i had my rough shape i wanted the glue joint to be minimal so i smoothed the faces of the wood down and cut a small strip off wood to act as a filler at the bottom of the knife.

Step 4: Plane Down to Square

I planed down the filler strip to the same thickness as the blade and planed the sides of the knife level.

Step 5: Test Fit and Trim Again

Once everything was ready i test fit all the pieces and realized the wood was still to big so i trimmed it some more, again planing the sides level.

Step 6: Hole for the Rod

Once everything was ready i drilled a 4mm hole where the rod would be, through one side of the wood and just transferred the mark and drilled the other side out.