Homemade Butterfly Knife





Introduction: Homemade Butterfly Knife

i made a butterfly knife out of some scrap metal i had in my back yard.
these weapons are illegal in some states.

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Step 1: Homemade Butterfly Knife

first you want some scrap metal..
your gunna need a measuring tape, a disc cutter, a pen or a marker, and some nuts and bolts.
measure out the handles (what size you want) and mark the measurements.
take the disc cutter and cut out 4 handles.
do the same thing with the blade and drill 2 holes in each handle.
(making this knife may take a few tries to get it right).
take the screws and slide them threw the holes and bold them on.
you might have to grind the screws down with a bench grinder or a disc cutter.
to sharpen the blade, first shape it out to the way you want it and work on grinding it down, again, with the bench grinder or disc cutter.

Step 2: Homemade Butterfly Knife

remember to make a tang pin hole in the blade.
this is where you will find some sort of metal pin to place in the tang.
i used 2 thick wood staples and twisted them with pliers.

Step 3: Homemade Butterfly Knife

and now you butterfly knife should come out something like this-



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    You might want to add something about the legality of these knives/

    its legal here in Idaho

    that's actually the makers responsibility, knife laws differ throughout the world (as where this instructable can be seen) ;-)

    I don't have any metalworking tools

    Cool but i live in canada and it's illegal to have one here :(

    I just made a butterfly knife similar to yours. im new to this and I want some constructive criticism. thanks!

    Are the handles just made out of scrap metal or wood?

    Very cool. Im working on a lesson on how i made mine.