Most indestructible knife

[Shorttime]

Beyond a certain set of parameters knives become basically indestructible in hand usage (you can stick anything in a hydraulic press or shoot it enough times and destroy it). At that point the question then becomes how can you optimize within that envelope to get a useful cutting instrument and that’s when things like edge stability, geometry, etc all get interesting….

Lucky for us, the word "most" in the title gives some room. Answering the question "most" indestructible only requires that the knife be more indestructible than anything else you can find. It doesn't need to survive an MBT cannon hit, or a lava bath, or being launched into the sun...

 

[AgentSteel]

What about a knife that was considered very tough, but happens not to be?

I was disappointed that the Peltonen Sissipuukko failed so early/easily in JoeX's destruction test. Wanted to buy one.... now... not so much.
(yep, we don't know for sure if his knife was a lemon or not)

 

[J. Doyle]

This Joe X fellow's videos cannot be used as any sort of metric or indicator of how tough this or that knife is or isn't.

Those destructive antics are not repeatable or predictable. Even across a sample of 10 of the exact same knife, you'd likely have different results.

They cannot even remotely be called "tests".

 

[LostCause]

What about a knife that was considered very tough, but happens not to be?

I was disappointed that the Peltonen Sissipuukko failed so early/easily in JoeX's destruction test. Wanted to buy one.... now... not so much.
(yep, we don't know for sure if his knife was a lemon or not)

I had one and it's tip broke off extremely easy for the thickness. Do not buy that knife!

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[AgentSteel]

L LostCause Yes that's a real shame... thanks for the feedback... hope the warranty got you covered?

 

[LostCause]

L LostCause Yes that's a real shame... thanks for the feedback... hope the warranty got you covered?

Nope. It did not. But this is not the thread for that.

I didn't even pry laterally. I just stabbed straight and well - snap...

Long story short - don't buy it.

 

[dogstar]

Ok I submit this as the “indestructible knife”

View attachment 2175051

It is 25mm thick solid titanium.


Can’t hold an edge, won’t really cut much of anything, but boy is it tough!!

You know what? I thought there was no practical use for this blade, but when the machines take over, this will be the best tool to fight back with.

 

[Gato do mato]

I don't know if there is another specific topic about "Batoning".
I make some knife test videos, nothing crazy like Joe X, but to really test the knives and in those tests I end up batoning.
And I always say in my videos that a knife is not made to split anything. Knife was made for cutting. That's why I love axes. That's what they are for.
Joe X himself suffered a lot to break a Fiskars axe.
However, there has been immense populism about bushcraft and the "apartment experts" call the shots, because in the Discovery videos they do, so the knife must hold.
The Brazilian Imbel, produced in the 80's and 90's a 12mm thick knife, with 1070 steel, called "Fireman's knife", maybe it's a very resistant knife, but I wouldn't try to break it. For batoning it would be too easy task.
I wouldn't have the heart to destroy this one. Gift from my blood brother, sergeant in the Brazilian army. And he became a collector's item in Brazil, costing around 300 dollars.

 

[Drop bear]

What about a knife that was considered very tough, but happens not to be?

I was disappointed that the Peltonen Sissipuukko failed so early/easily in JoeX's destruction test. Wanted to buy one.... now... not so much.
(yep, we don't know for sure if his knife was a lemon or not)

I assumed people make them indestructible and then never try to destroy them to see if they succeeded.

Especially if the knife is expensive.

 

[AgentSteel]

In response to the OP, the Gerber Strongarm gets an honorable mention, Joe X had a tough time breaking it compared to other knives

The toughest one so far to survive is the Work Tuff Gear Hemlock Ares in SK-85 steel. He could only break it by shooting it (point blank) with his shotgun

 

[WillB]

What about a knife that was considered very tough, but happens not to be?

I was disappointed that the Peltonen Sissipuukko failed so early/easily in JoeX's destruction test. Wanted to buy one.... now... not so much.
(yep, we don't know for sure if his knife was a lemon or not)

Speaking of that, I have to admit, I was surprised and dismayed how poorly the pry bar with a point that is the Fallkniven with Lam Cos steel did at the hands of JoeX. That one I fully expected to survive all but the worst abuse he could/would supply, and it was ruined within a short time.

 

[SwissHeritageCo]

What about a knife that was considered very tough, but happens not to be?

I was disappointed that the Peltonen Sissipuukko failed so early/easily in JoeX's destruction test. Wanted to buy one.... now... not so much.
(yep, we don't know for sure if his knife was a lemon or not)

Probably was a lemon, that's 80crv2 krupp steel if I recall correctly, heat treated by Lauri... known to be a very tough steel, which is exactly the experience I have with it.

 

[Bob Denman]

Watching knives be destroyed would be like watching World-Class Models punch each other in the mouth; with brass knuckles...

 

[Joseph Bandeko]

I think these are pretty "indestructible"

All but one are over 1/4" of 52100

 

[Bob Denman]

I wouldn't bet against either of these .345" monsters
Busse's War Train and MOAB

 

[rlewpolar]

Watching knives be destroyed would be like watching World-Class Models punch each other in the mouth; with brass knuckles...

More like guns being thrown against a brick wall, testing for toughness and durability

 

[Bob Denman]

More like guns being thrown against a brick wall, testing for toughness and durability

 

[Another Shepherd]

What if Joe X and Pete at Cedric & Ada colaborated?
What's the most indestructible knife that can make 100 rope cuts by Cedric & Ada standards?

 

[The Grendels]

Watching knives be destroyed would be like watching World-Class Models punch each other in the mouth; with brass knuckles...

There's definitely a "Why are you like this?" moment going on with these destruction videos. A certain amount of stress testing is fine, but maybe batoning through a car or getting shot with a bullet isn't going to effect my consumer choices.

Then there's that time that a guy tested a skinning knife as if it was an overbuilt bushcrafty knife and complained about it not being up to the task. You see his vid intro with him shooting and think, he's a hunter so we'll see it put through its paces, with the focus on game processing....wrong.

The only time I don't have a problem with it is when it's to prove an actual point, like confronting the view that the original scales of the Benchmade Bugout made it weak.

 

[whereismyknife]

As everyone has stated, there is no such thing as an indestructible knife. With a blade of 54, 55 hrc hardness and enough thickness, you can give joeX a toy to play with for days, but I don't think that would be a good knife.