The Demko customs are strong but the best part is that they are a pleasure to carry and use. Andrew Demko is a Genius

Whatever people say about your tests, you`re one hell of an engineer

You're a great knife engineer and designer Andrew but damn you have a terrible memory LOL. Love your designs man keep it up

I absolutely luv my AD10 Folders. They are super performers! They're some of the best Folders Andrew and John Demko ever designed and made, period! They absolutely "ROCK!!!" :-) Peace, Stiletto :-)

Jesus Christ. I have a Cold Steel AD10 on the way. Now I want a custom one too

And that's how you can claim the triad is the strongest lock on the planet!

VERY NICE!!! Cant wait to get my AD 10 Waiting for the Mail

Cliff, yes I have plenty of broken samples. I think it boils down to balancing strength vs toughness. I may be wrong about the 5160 but I have found lower carbon steel have been stronger(holding weight) than higher carbon steels. It is a fact that the exact same steel and blade tang shape will hold more weigh at 55rc than 60rc by a good bit. The more important benefit in impact resistance (spine whacking and over striking).

Demko is a legend.

@hagninety4116

3 жыл бұрын

Not really.

Love my AD10 in S35VN.

one day im going to get one of your customs mr Demko your work has got to be one of if not the best i have see but until i can afford it i guess i'll just have to stick to my cold steels

I love m4. great steel. and i honestly wouldnt expect anything less from a custom demko

Holy crap!! That's one solid knife

Have AD10 w/ peel plie carbon fiber. Just had a mirror edge put.. Sharp & strong B-)

Very nice Andrew. :) Glad I have my 2.

Demko: "...I'm afraid to even stand here" (moves closer) "okay go." I've been carrying my ad15 for about a month. Its heavy but very well constructed and feels quality in hand. I like it a lot. I Usually carry an Atlantic Salt and I miss the serrations. Overall a fantastic tool and I'm working on getting an ad10 and 20 before any possible issues due to the buyout.

Woohoo that rocks! I got a M390 one and its one knife I will NEVER sell...

very impressive test, great vidéo nice work

Andrew Demko works for Cold Steel and designs a large majority of their knives, he also designed the Triad locking system.

thats insane!

so you make cold steel knives and your own ... sick

Andrew, have you been able to catch the failure before it is complete? You may want to check and try to take one of the high HRC blades almost to the point of failure and then check for micro-cracks at any high stress point (anything with multi-plane sharp intersection, corners, pivot holes, etc.). You can easily do this with penetrating fluids. This may be the cause of the premature failure.

one word- Awesome

such a cool knife

That is the interesting thing, the strength of 5160 at 55 HRC is significantly lower than CPM-M2 at 60+ HRC, there is metallurgical data you can simply look up on that, plus the hardness test itself is a direct measure of strength in compression. If the blades are actually failing under a slow load with a lower break point yet the metallurgical data says they are stronger then something is fairly odd. Are the pictures available for viewing?

Andrew, I appreciate the response. As you are doing a slow load, I can't see the mechanism for 5160 to test higher than M4, especially with a 5 HRC difference. Do you have pictures of the broken/damaged faces I would be curious to see the exact mechanism of the failure.

I don't think I have any steel types other than 400c, elmax cpm 154, and cpmm4. I don't disagree with the books I think the stress or strain or whatever happens in a weight hang test is not directly related to the "strength" of a material.

continued: ....he lets actions speak for themselves, class act.

That is the curious thing, it is a slow load so it has to be slow load failure. The only thing I can see happening is if you are pushing beyond the plastic region, i.e., the onset of damage, and stopping at a pure fracture point. Depending on the exact nature of the breaks it could be higher but the onset should not be. I would appreciate seeing the pictures if possible. Have you done a pure bend test on HT samples just to check the actual yield/uts points?

your beating on my grail knife!!

Damn...I want one lol

I want one !!!!

Andrew Demkо SUPER STAR!!! ⭐⭐⭐⭐⭐

I own 4 Demko style production knives. It's gunna be 5, ASAP.

That's an awesome knife, but when would you ever need it to hold 800+ pounds. I'd love one with the absolute best cutting ability that holds 350 ish. Just a suggestion. I love your videos and drool over the knives. Thx again for always striving to make the best blades ever.

So is only the blade made of CPM high performance steels, or are the locking component also,,

Easily the strongest folder world ever know.

I own the knives you mention. I don't know about the ER RAO but no framelock can withstand the loads that the heavier Tri-Ad lock folders can. The locking bars are just not designed or built for that kind of pressure.

Cliff I know you are very knowledgeable, however in my tests on tri ads higher RC blades always fail before say 55RC.

Is it possible he's running into notch sensitivity issues on all the radii and corners in the tang/lockbar engagement area?

That's cool and all, but how does it cut? I can't cut with the lock. :D

ANDREW DEMKO IS A VERY SMART MAN

OMG, Awesome, Thats why i buy Cold Steel, Oh yeah, But i want a DEMKO, Oh Please Hook me UP

How much weight does the cold steel production AD10 with the aluminum liners and S35VN steel hold??? And how does the scorpion lock hold up in the spine whack. Over strike. And weight hang tests?

@zarplialabai3420

2 жыл бұрын

Search and you'll find

@petersirangelo2867

2 жыл бұрын

@@zarplialabai3420 if I found it, I would not have asked

No, the tests are truly like the straw that broke the camels back. A knife may hold 475 all day long then break at 500. There seems to be one failure point and it's catastrophic. Sorry I thought the test showed the knife breaking I did not specify to my brother, who puts my videos up, to show the failure point. You should contact me at demkoknives@yahoo.com for more details

Well enough but what test results are you depending on? or are you guessing [this is an honest question] Also which Crusader Forge do you have? Then we have customs [Demkos are semi-customs far as i know] like Carillo and others. Mr. Demko doesn't seem to be arrogant or presumptuos at all, so i think he just wouldn't go around saying he makes the "best" or "strongest" he's too classy.

Why would you think that 5160 at 57 HRC would have a higher break point under a slow load than CPM-M4 at 62 HRC? The yield point would be significantly lower.

wow

holy shitballs

No other knife maker is this,yeah you don't need it to hold 400+ pounds but why not make it strong as well as pretty

Nice! Spyderco what's a Spyderco?

How about a Benchmade 275 Adamas?

Ok Demko, you and Shane Sibert are gonna arm wrestle, you ready? Post the vid please... ;)

I don't get it? How can this test of a WMD of such magnitude be presented to Earth on You Tube? Are the World Powers bidding on this? And, how in the heck did you get your hands on this Andrew?

367 kg

What's RC?

@deonpetrus

3 жыл бұрын

Rockwell Hardness

Cliff, I know you are very knol

Uh, i don't think even Mr Demko would say that, he *might* say it's in the league of the strongest. Crusader Forge, Hinderer, Extreme Ratio are a few. Might wanna do a bit o research 1st.

@zarplialabai3420

2 жыл бұрын

Extrema are crap

not sure if it AD10