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Knife Making Without Tools

Step 12You Have a Knife!

You Have a Knife!
It's ready for finish sharpening as demonstrated here.
Here's how to make a paper sheath so you can carry it safely in your pocket.

That was quick!
It took less than an hour according to my photo EXIF timestamps in spite of interruptions such as rain and repeatedly hitting my camera with a hammer (canon s30 "E18 error").

Use your knife safely!
As my Granddad used to say, "Don't cut toward yourself and you'll never get cut!"
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29 comments
Nov 9, 2010. 5:49 PMzaqtaq258 says:
I made the blade on a butter knife and I didnt have to cut away anything. It just took a little longer to where away the metal into a point. I just have a few questions about the handle. Where could you get parchute cord? Would there be any at a walmart or sporting goods store? Does any one have any other ways to make a handle?
Dec 25, 2010. 11:15 PMkrdog says:
For this particular purpose, 1/8th" nylon boot laces work wonderfully. You can by a pair of 72" laces for a coupla bucks at wallyworld giving you 12' of working material. If you deconstuct one you'll find a braided cover around a central core, same as paracord. The difference is essential contruction. True paracord has several cohesive strands forming the core; the bootlace core is more like a clusterf**k, but after deconstruction the separate pices of both can be used for string, thread, etc. enabling you to repair jeans or create fish line for instance.
Jan 30, 2011. 7:27 PMcommanderzhao says:
He meant wal-mart
Dec 31, 2010. 9:44 AMkethinum says:
i made one of these last night and also a simple sheath thx fr da onstructable its a goood one
Sep 23, 2009. 3:32 PMkrdog says:
using a 'whip knot' would make a better handle. it's used to finnish the end of a natural fiber rope that can't be burt n sealed. it's similar to what's been shown. u make a loop with a tail along the blade, wrap the handle, stick the end in the loop at the pommel then pull on the tail along the blade. loolk it up in the 'knot' section, i'm sure it's there
Dec 23, 2010. 10:00 PMmysss says:
Why would that be better? This looks like it might be more secure to me.
Dec 24, 2010. 5:15 AMkrdog says:
You don't have to drill any holes in the handle, which weaken the knife, to secure the wrap. Also, tied properly it won';t slip off at a bad time. Hemp ropes that are whipped with about 1" of whipping don't fray for years n years.
Dec 25, 2010. 9:47 PMmysss says:
Alright, but hemp is a whole lot rougher than metal, and parachute cord, if that's used...or really most cord, especially synthetics--is less secure than the waxed string I've seen used to whip rope. If we're using a butter knife, are we really too concerned about strength? An eighth-inch hole isn't much. What do you use to whip your rope?
Dec 25, 2010. 11:02 PMkrdog says:
Actually, yes, you need to worry about strength because you're already dealing with a 'weak' material. Why make it weaker? The outer covering on paracord is a braided cover around a core. That braid works like a boot tread. Give the cord a slight twist and pull tightly as you wrap. It shou;ld be so hard to pull the tail on the knot that you need pliers. If you can pull the tail w/your fingers you haven't wrapped it tightly enough. Try it. You'll be surprised at how well it works. I have a 'buttershank' I made a coupla years ago the paracord ain't come off of yet and I used it a lot living in the street for all nuber of things. I've used that same wrap on many different items over the years and it's never come loose or failed me when I needed it. It's an extremely good repair 'stitch' for round things that split and can also be used decoratively because you have no unsightly loose ends. In whipping rope I've used everything from waxed cotton string to thin nylon thread. The whip's virtue is in how it's tied rather than tyhe material used but it MUST be tied tightly.
Nov 23, 2009. 1:45 PMdiy-guitar-guy says:
for you guys arguing about the jail thing. my mates dad works as a fire fighter and they went to a jail to learn what to do if there was a fire there. the guards showed them a box of wepons made bye inmates, some of them made them in their cells with things they had stole. others made them in the metalwork facsilitys. the biggest thing they had confascated was a meter long sword. handle and all. the guy was a physco though.
Nov 20, 2009. 6:31 PMAtlas22 says:
Dude! Talk about geting more for less! I got like a dosen butterknifes in my house, i could spare some. thanks for this instructable, dude!
Sep 23, 2009. 7:15 AMpinja71 says:
that is cool I bought a butter knife for 25 cents and I am going to make one
Jun 4, 2009. 1:26 PM0la says:
I think that`s a very clever way to improvise. Cool project!
Jul 24, 2009. 1:54 PMBoserWulf says:
i agree =)
Mar 12, 2009. 1:28 PMbrothkindle545 says:
ur using tools i cant use
May 6, 2009. 1:01 PMtmuterspaugh says:
he uses a rock how can u not use a rock
Jul 23, 2009. 5:51 PMInfernowolf says:
brotherkindle probably means that he cant use a drill press and doesnt have nylon/polyester parachute chord
Aug 11, 2009. 11:28 AMlilpepsikraker says:
uhh they are optional. duh!
Mar 30, 2009. 2:46 PM_soapy_ says:
Like apostrophes? Proper sentences? Or sharp objects like butter knives?
Aug 28, 2010. 11:26 AMsportsmangi says:
All by the way which are sentence frags.
Mar 6, 2009. 7:27 PMsites23 says:
butterknife rocks!
Jan 17, 2008. 5:12 PMrjeffries says:
Thanks. This will be super handy should I have to spend time in prison. Seriously, it's a pretty cool project.
Aug 13, 2008. 11:03 PMwhite dough says:
i dun think the guards will allow u to bring any butter knifes with u in the cell...
Jan 20, 2008. 7:57 AMadamthiede says:
not many of us would find actual metal knives in prison. Most would be plastic cutlery, im guessing. I have never been in prison.
Aug 14, 2008. 6:26 PMchardster says:
no plastic, either. thats sharp
Feb 18, 2008. 8:03 PMGrey_Wolfe says:
All you need is a toothbrush, lighter, and left over cellophane from your meal. You can make a very sharp knife with a ridgid blade with these items.
Jun 13, 2008. 7:57 PMandyhuntdesigns says:
And you can smuggle it in your keester.
Aug 4, 2008. 10:33 AMandrew13 says:
sick
Jul 16, 2008. 12:46 AMGrey_Wolfe says:
I'm pretty open minded, but my keester's a no weapon zone, thank you very much. Besides, youd have to wrap it up real well in order to pull that off, as all the materials I listed go into making the weapon (except the lighter of coarse). And it's VERY sharp. Don't think the guards are gonna be very sympathetic when you slice open your bum trying to hide a knife. And the stories that'd be told.
Oct 7, 2008. 4:09 AMwolfy_9005 says:
haha yeh unless you include poisonous gas :)
Jun 14, 2008. 6:57 AMadamthiede says:
***shudders at thought***
Jul 16, 2008. 12:47 AMGrey_Wolfe says:
No kidding.
Jun 13, 2008. 1:48 PMplayboi777 says:
u just grid it with concret to saw he peices off the guy on youtube said to use a tool or something thats kool im going to make one similar to that to that he said u can make it any shape so mines going to be way differnt.
Feb 19, 2008. 1:42 PMDanLoney says:
cool project man. i had to steal a butterknife from the table set,i cut and sharpned it with a bench grinder witch took maybe 5 mins. i had my fun throwing it into a tree till it finally broke haha ~DanLoney

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Author:TimAnderson
Tim Anderson is the author of the "Heirloom Technology" column in Make Magazine. He is co-founder of www.zcorp.com, manufacturers of "3D Printer" output devices. His detailed drawings of traditional ...
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