super easy combat knife

this is a cool way of making a knife with very common tools

Step 1 To start

ok, to start all you need is a exacto knife
sand paper
and sheet of plastic

Comments

[Plo Koon]

if ur gunna shrpn it so that it kils smbody, why not jst use the exatco nife?

[darkinertia]

...spell check?

wow.

[SHAUGHN_33]

Why make a plastic knife when you have a perfectly good utility knife right there? Just sayin' .......

[wheeze]

a "prison shank" should be able to be made IN PRISON.

That means no knives.

Useless.

[RastaMonkey]

In shop class I make acrylic shanks and sneek them past my teachers all of the time. our shop teacher is so dumb though that he actualy gave someone an A on a shank not knowing what it was

[DannyG]

ha!!!

[briackman]

hmm i bet you could use a dremel to cut a shape and a sanding tip for a dremel to sharpen it.but unfortunatly i dont own a dremel (sucks for me) so i cant try it

[bg_askins]

all i have to say is "BOOOOOO!!!!" I'd get bored in iraq and make knifes out of tv screens(they curved ) or chunks of broken tile. you need to try harder or quit.

[Holden_vy_s]

(removed by author or community request)

[Pwag]

You can't get a regular knife past the metal detectors at you-name-it high security area.

Depending on the "sheet of plastic" used these can be pretty nasty.

I've seen some made from the lexan/bulletproof/area-51-plastic windows in prisons that were pretty nasty. Slipped right through the metal detectors too.

But I'll fall in with everyone else and say this is a pretty shoddy demonstration of how to make a plastic knife.

[thoraxe]

or u could make a glass or ceramic knife, razor sharp and could probably get past security

[Camisado]

Yeah, depending of the plastic, it can be quite nasty in stabs.... but what if it's got to clash blades like the one in warrior movies with real knives?

[tippmannphreak]

Super easy combat shank

[josh_pogo]

step one you have a knife by step 5 you have a blunt knife a messy bit of plastic and some wasted sand paper

[storm768]

WHA?? DID U SAY LAOS???

[brandon borick]

I SHANK YOU

[xabc]

yeah everyone wants a plastic knife

[Sgt.Waffles]

You already had a knife in step one.

[GorillazMiko]

Yeah, I was going to say that too, haha.

[copycat42]

technically, it was a pointy (plastic) stick.

[cowscankill]

No, he means the X-Acto knife

[Wasagi]

But now he has a Prison Shank!!

[Sniper Zed]

wow i didn't think people actually wore their pt gear around the house....but not surprising with the kind of "content" that he created....this shouldn't even be posted......to be constructive, you could have at least thought the shape through a bit more.

[pindalanderz]

you would have better luck growing your fingernails out.

[a.d.pear]

he made a shank

[meatygut]

lol, i guess people can use as a toy, but not for combat (lol it's safe enough to give a 6 yr old)

[talentboy95]

pretty cool butt i do kinda agree with some of the other people the shape is kinda wierd =)

[Camisado]

Dude, that 'X-Acto knife' isn't an X-Acto knife. Ever herd about a little thing called 'CUTTER'? That's what it is.

[fighterpilot1]

are you for real?

[dannylee]

i am soz dude but this has got to be a fing joke :P

[notjustsomeone]

Dude, this is horrible. I know it's probablly your first instructable or something, but please make it go away. At least until you can collect your thoughts and use your imagination to come up with something that resembles a well thought out project resulting in a product worth making. Several suggestions worth looking into can be found in this comments section.

[Dungeonbrownies]

i think i could have achieved the same things with a rock wrapped with a sock or just a pair of scissors and a carton of milk. OK for cosplay maybe though, just dont try to become king of the streets with one of these; it aint the days of WestSideStory when you could outdance your opponents into submission with a catchy tune and fancy footwork. =P<br/><br/>But still, yes, this could be fun for a costume if you dressed it up a lil.<br/>maybe try to hold up an old tee shirt as the BG of your cam shots next time,<br/>you look so damn stoned. ^_<br/>

[jeepinreencactor]

Amazing what someone will post these days. I want my min back that it took to read this!

[Laos]

use like 120 or 180 sand paper. it needs to be pretty coarse to help first sharpen it out. If you like it to be of good quality. Work from 120 sand paper, to 180, to 220, and finish it off with a 400. Dont overdo it, or you may just DULL the blade.

[Laos]

Actually. Flint or Obsidian would be best. Or if you know Earth Science. Check your reference table for any rock you can get that 'cleavages' since that is what you want. a chunk that breaks off you can sharpen into something. Obsidian is Volcanic Rock. used as Arrow Head. Availible at some flea markets or Earth Science Trips Flint you have to know. used with steel for fire making. sharpens into flint knives for example... My best suggestion: Flint or steel. Since you can turn one into a fire making tool, and both are sharpenable. P.S. you can use anything that has an abrasive to make something decently useable as a knife. Since it beats wasting a good knife in the middle of nowhere

[drummonkey92]

this is very simple but sort of cool :) i agree that this isnt realy a 'combat knife' but you may be able to get it fairly sharp (although it wouldnt hold an edge) what can this cut through?

[James (pseudo-geek)]

flesh. if your a moderately strong male, you'll be able to slide this into someones stomach easily.

[thebluemartyr]

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[kreeningsons]

You can make a knife out of plastic. Uhh and he just did.

[thebluemartyr]

(removed by author or community request)