Ranking of Steels in Categories based on Edge Retention cutting 5/8" rope

Darrin Sanders said:
I definitely agree with this. 4V gives up very little to 3V in toughness at high hardness but the edge holding goes up dramatically. It all comes down to how much toughness you actually need for the tasks you intend the knife to be able to perform.
This is where custom makers who do their homework can maximize the performance of a blade intended for a specific task. Making a blade that performs several tasks well gets a bit tricky. Steel choice, hardness, & geometry all "trade-off" propositions. When you gain something in one area you have to give up something in another area. That's where the homework comes in. LOL
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I completely agree.
 
Darrin Sanders said:
It doesn't, because Jim doesn't CHOP the rope he CUTS it. There is no impact involved in this type of test. This thread is all about edge holding and zero to do with chopping. Ranking steels for chopping would require a completely different type of test.
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Okay, just checking. Isn't steel toughness measured by Charpy impact resistance testing?
 
Ankerson said:
Sounds like marketing to me, bonded ti carbide.......

Makes one wonder how and what they actually tested these things against and on what type of media.
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I am skeptical as well, Sounds like a std stainless that they impregnated a diamond/Ti dust on like a cement cutting wheel.
 
Cobalt said:
I am skeptical as well, Sounds like a std stainless that they impregnated a diamond/Ti dust on like a cement cutting wheel.
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When things sound like marketing they are just that......

Buzz word type of things.
 
Ankerson said:
When things sound like marketing they are just that......

Buzz word type of things.
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Funny thing is that they have been around for over 5 years and they are still around. I would think that by now there would have been some real world testing of the edge, but nothing I can find. One video and honestly the video made me forget about the knife and want to go get a good meal

https://www.youtube.com/watch?v=kxck1EE1tX8
 
Cobalt said:
Funny thing is that they have been around for over 5 years and they are still around. I would think that by now there would have been some real world testing of the edge, but nothing I can find. One video and honestly the video made me forget about the knife and want to go get a good meal

https://www.youtube.com/watch?v=kxck1EE1tX8
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Yeah I see what you mean. ;)

Reminds me of the Ginsu commercial. LOL
 
Honestly, I would love to see you test one and would be willing to pay pal you some money to order one. I think it is only fair with all the time you invest into this that maybe we(probably just me in this case) can help you by putting some money out to buy these knives for you to use. If you wish to buy one let me know and I would go in on it with you. You can keep it afterwards, I could care less.
 
Cobalt said:
Honestly, I would love to see you test one and would be willing to pay pal you some money to order one. I think it is only fair with all the time you invest into this that maybe we(probably just me in this case) can help you by putting some money out to buy these knives for you to use. If you wish to buy one let me know and I would go in on it with you. You can keep it afterwards, I could care less.
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The multipurpose Utility knife is $92..... :eek:

4 1/4" Blade.

That would be the one to test I think size wise.
 
Maybe the blade is so thin it keeps somewhat cutting fruits and vegetables even if the apex is ruined.
Got one Solingen Dünnschliff vegetable blade which works like that. Some people who don't need extra sharp could keep "cutting" with that for a long time.
Of course no prying with one that thin. :)
 
Cobalt said:
lol, I know. They do look interesting.
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From reading more about them it really looks like they are talking about the coating on the blade and doing a play on words because the actual edge looks like standard steel to me.

Kinda like the Cutco knife stuff, they are 440A, but talk to people and well you get the idea, it was brought up a couple of weeks ago in conversation.....

I never said a word..... LOL
 
Ankerson said:
From reading more about them it really looks like they are talking about the coating on the blade and doing a play on words because the actual edge looks like standard steel to me.

Kinda like the Cutco knife stuff, they are 440A, but talk to people and well you get the idea, it was brought up a couple of weeks ago in conversation.....

I never said a word..... LOL
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Well, lets face it, some coatings do work. Seems to me that the reason they say no sharpening is because ou can't sharpen or it will remove the coating. So in effect the life of this knife is how long that coating lasts. They claim 25 years.
 
Cobalt said:
Well, lets face it, some coatings do work. Seems to me that the reason they say no sharpening is because ou can't sharpen or it will remove the coating. So in effect the life of this knife is how long that coating lasts. They claim 25 years.
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Seems like a lot of money to find out. :D

The hard way. ;)

If someone wanted one or has one and sent it to me for testing that would be fine.
 
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