Introduction: SHTF Knife Sharpening

Picture of SHTF Knife Sharpening

In an apocalyptic situation or you are just out in the woods without a sharpening stone, there are many ways to sharpen your knife or axe without one. In this Instructable I will show you a few of them.

Step 1: Car Window

Picture of Car Window

If you are near a car and you can get the window down, just run your knife along the unpolished and rounded part of the glass on the top of the window. Do 3 or 4 passes and flip your knife, repeat until sharp.

Step 2: Coffee Cup

Picture of Coffee Cup

If you flip your coffee cup over there is an un-coated rounded edge that will work the same way as the window works.

Step 3: River Rock

Picture of River Rock

A flat, rounded, and smooth river rock will work almost as well as a real sharpening stone. Just use it like you would use a stone, because it is one...

Step 4: Stropping

Picture of Stropping

Once you have a nice sharp edge you will need to strop your knife.

The nylon straps on your pack work well,


A leather belt/ sheath will work too.

Just hold the strap tight and run the knife along it backwards.

Step 5: Thanks

Thanks for viewing my instructable, and if you have any other ways to sharpen in a SHTF situation, feel free to tell me in the comments.


ch5 (author)2015-04-02

I'll have to give the coffe cup trick a go, thanks for the idea.

The car window one proved to be usefull on a couple occasions already :)

My goto makeshift knife sharpening implement is sandpaper laid flat on a table.

Uncle Kudzu (author)2015-03-14

Very useful info! Thanks for sharing.

hgb003 (author)Uncle Kudzu2015-03-14

Thanks for reading. Hope you learned something.

Skwurlito (author)2015-03-14

The last one is why i wear a leather belt. They also sell inexpensive strops that are light-weight and fairly cheap. I bought one from amazon for $4 for my straight razor.

hgb003 (author)Skwurlito2015-03-14

Leather belts always help, and they're fashionable. Thanks.

Battlespeed (author)2015-03-14

You can also sharpen your knife in the "V" formed by a pair of partially-open scissors.

hgb003 (author)Battlespeed2015-03-14

True, thanks for the tip.

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