Pocket Knife Lock Strength Test
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- Опубликовано: 3 авг 2024
- Check out our weight test of knife locking mechanisms. We put Liner Locks, Frame Locks, and Lock Backs to the test and see how many pounds they can hold. Which lock type will hold the most?
Watch Lock Strength Test II here; more knives, more locks, more weight! • Pocket Knife Lock Stre...
Other Product Test videos: • Product Tests
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Here are the knives we used in the video:
Lock Backs
Gerber Gator
www.bladehq.com/?search=gerber...
Cold Steel Voyager
www.bladehq.com/cat--Cold-Stee...
Buck Ranger
www.bladehq.com/?search=Buck+R...
Liner Locks
Spyderco Tenacious
www.bladehq.com/cat--Spyderco-...
5.11 Tactical Scout
www.bladehq.com/?search=5.11+s...
CRKT Shenanigan
www.bladehq.com/cat--CRKT-Shen...
Frame Locks
Kershaw Cryo II
www.bladehq.com/cat--Kershaw-C...
Boker Magnum Steel Power
www.bladehq.com/cat--Boker-Man...
ESEE Zancudo
www.bladehq.com/cat--Zancudo--...
#pocketknife #knifelocktest #linerlock #framelock #lockback 
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That spyderco has to be given credit for that feat of streinght. A 40 dollar liner lock to stand up to that kind of weight is awesome
For real!
It’s my EDC knife. Works well at the construction site and I abuse it
I have this knife, it is quite nice.
I carried this knife everyday for almost 2 years, I only rinsed it occasionally and did simple sharpening... It's the reason I'm into Spyderco today and why I carry Golden made knives.
It’s a well-designed & well priced knife...it’s made in China and the steel is NOT equal to the Japanese produced Spydercos.
I carried the knife at camp for 3 weeks & it developed surface rusting on the blade.
you can't take an average when you max out at 380
It’s fair for the liner and frame locks which also failed at 380, but not for the lockbacks.
I know a couple of guys who can bench more than that...so I expect the best steel/titanium modern knife locks to go higher...
This comment makes no sense.
@@libertynindependence It makes perfect sense its unfair to use 380 because they didn't break.... what if they actually would have gone up to 500?
@@trevor894 its not a test of its max, its a test to see 'Which lock type will hold the most?' as noted in the description. Obviously lock backs are the strongest, it really doesn't take a test to realize that.
“350 pounds is a tonne of weight.”
Gold.
right I'm a huge guy, but I only weigh 310
@@preacherjayk ... A ton is 2,000 lbs..
I'll remember this the next time I decide to put nearly 400lbs of pressure on one of my pocket knives
Kyle Stewart hhhhahaha
an the back of the knife to😂😂😂😂 I would say all locks are more when strong enough for all task you could imagine, it´s way more importernt they don´t accedently by mistake come loose!
Ikr. This video is stupid in this regard. I’ve literally used a frame lock in self defense and it didn’t fail at all.
Yes right? All these debates about what is safer. Have you ever put over 200 lbs of force in the OPPOSITE direction in which the knife is supposed to cut??? I mean a liner lock would hold my entire body weight. I don't think that safety is an issue in real life situations with liner locks. Or do you?
@@bandito_dino What exactly happened? And did you kill the guy? And yes I agree. This whole debate is silly. Who puts his whole body weight AGAINST the cutting direction of the blade???
No eye protection? Oh lawd.
funny seeing you here.
what are you doing here
Ooh he's got a lot of subscribers, better pin or check his comment! Oh wait...
On my state call that greget
Face shield, face shield, FACE SHIELD!!!
The distance from the pivot matters in comparing weight to weight
This exactly. The bending moment induced at the blade-lock interface is what is breaking it, not the weight applied at the end of the lever. With the handles of these knives averaging 3-4 inches in length, a difference of 1-inch when it comes to load placement could result in 25-33% differences in torque generated at a give weight load.
Andrew Lord
Yep, classic mechanics
Rocky Jones physics...
Very true however my takeaway is that all three locks performed beyond realistic use requirements. Experiment successful. Just go with your personal preference if it’s a quality knife it’s safe.
True but it looked like they had the cable placement fairly even so I don't think the results were skewed much at all.
Just the shape and placement of the pull cable on the handle of each knife is going to change the test and make it so the force meaurements aren't comparable. Better to put a pipe on each knife handle so the torque on each lock can be standardized. You'll also be able to break each lock with the longer pipe under the same weight and take the handle strength out of the results as well to get a fairer comparison. But, the results are pretty much as expected. Lock backs are probably the strongest, they are just heavier and more expensive to produce.
The entire concept of torque was left out of this test... Very disappointing
Very cool stuff. My buddy at work had a liner lock fail on him when he was pressing down on it trying to cut something. He had to go to the hospital and get stitches. Having a reliable lock is important.
Was he trying to cut with the back of the blade?
Was it a z-hunter? Bet it was not one of the better brands.
Btw, I have only once had a lock fail on me...it was a Gerber tanto (good looking but very very weak lock)
This is why I'm not very comfortable with liner locks. I know there are good ones out there, but having those knives fail on me multiple times has turned me off from them
I guess im randomly asking but does any of you know a way to log back into an instagram account..?
I was stupid forgot my password. I love any tricks you can give me!
@Kyson Pablo instablaster =)
You can't average the locking strength starting at the point where the lock failed.
You have to start at the last point in which it did not fail. Also you kept referring to the locks fail weight as the weight it held to.
I suspect there is metal fatigue going on. Wouldn't it be better to use a new knife at each new weight to exclude metal fatigue?
very cool video guys. one thing to consider for future tests is the distances from the pivot you're hanging the weight at and the position of the lock from the pivot. because just for an example(if my school physics memory serves me well), if you hang 100 pounds 2 inches away from the pivot and lock is half an inch from the pivot, the lock is actually taking forces 4 times the actual weight so 400 pounds...
We tried to make sure that the positioning of wire was relatively the same length out, though this was more of a generalized test than a perfect one.
The physics term for this is torque. Torque is just a force (hanging weight) applied at a distance (distance from pivot). So Torque=Force X Distance....So 100pounds X2inches=200in-lbs...Just like a torque wrench.
the tenacious REALLY IMPRESSED
Benchmade Axis Lock please :)
There are tons of these on Benchmade's YT page.
zunedog31 Agreed but a neutral party test would be nice. :)
Spike T They put the knives in a Chitillin which applies constant downward force and reads out the exact amount of pounds before it senses a lack of resistance. It is a far more exact test than the one here and is the same neutral party or not.
zunedog31 yeah but they could have a special "ringer " that is a little more beefy than a random, off the shelf blade. I'd prefer to see this test done by blade hq on them.
I don't ever trust a manufacturers tests. They'll build special ringers or break 100 knives until they get the one that they want to show off ad's them upload that video. A manufacturer test is ALWAYS gonna be skewed.
I was really impressed with the Tenacious. I had no idea that it was going to be that much better than the other two.
I just hope the results are proper and he gave each product the right angle distance from table. 10lbs off a 2 inch vs 10lbs 3 inchs from knife will give insanely diff results..
I carry the Tenacious and in spite of owning more expensive knives, it's one of my favorites.
I have a new found respect for lock-backs!
I've suspected for years they were the strongest, I've never broken one in the 45 years I've been carrying knives can't say the same for liners or frame locks,
This was really interesting, More videos like these would be fantastic, for buyers and manufacturing companies as well.
I thought I had a cool job and then I watched these videos and I realized my job sucks! lmao
Pretty much any job would suck compared to this...its ok.
Yeah I wish I could just break knives for the fun of it!
I'm disappointed that you didn't push them all to the breaking point.
We'll like we said we have 550 lbs but weren't able to use them due to height and the bolts on the wire clamps. If we do this again we'll use more weight :)
@@BladeHQ Well preparation is key, or was it a spontaneous test? ;P
Blade HQ mass XD
I know that the locks are different but I think the axis lock vs sydercos version of the axis lock vs SOGs version of the lock would be a cool comparison.
I've had liner lock knives fail on me before, and seen them fail on others. Lockbacks are always the best!
I was certain the gerber would break first who else?
Gerber knives are garbage.
Cletus Kasady they make some bad knives, but they also make some great knives. The strongarm, 06 auto, and lmf II infintry are great examples of this. Even their budget knives are okay. I carried a mini paraframe for a year before I lost it and it never failed, knife was 7 dollars. Sure, it had cheap steel, and it couldn’t be opened one handed, but the lockup was good, there was no blade play, and it took a pretty nice edge all while fitting well in my pocket and not intimidating people when pulled out. So yeah, gerber makes some bad knives. But they also make ok budget knives and some pretty great mid-price U.S. made knives.
@@jacobslyker1450 Agreed, all my Gerber blades ended up breaking or becoming so wobbly I couldn't trust the lock anymore. That said, I got more than my money's worth of use out them. And I still always keep one handy as I get a couple each Xmas at Walmart or online for dirt cheap during Black Friday. It's my go-to for daily utility tasks cause I don't care if i dull it, scratch it, bend it, chip it, break the tip, or break the entire knife, haha. My Emerson CQC6 handmade combat folder is strictly for showing off and defensive use only, same goes for any of my carry blades that cost over $100 really.
Gerbers, CRKTs, and Kershaws are the best utility carry blades you can get for the money. I know there's many other brands with quality, budget blades I'm not mentioning, just making a point that cheaper blades are good for what they are intended for, just gotta keep a nice sharp edge on them, of course.
Is that a China Gerber or a portland
The knives themselves are pretty crappy but i really do like the exterior handle material and contour. I think if someone made one with actual structure behind it I'd be a pretty happy camper.
I'm talking about the large folding knife of course, the one shown in the video. I've never used any other gerber so i can't speak to their smaller knives
Great test.. I've got the cold steel voyager and it's extremely solid.
The Buck Ranger really impressed me.
Just my 0.02 but I think this test speaks just as much about the brands as much as the locking mechanism of these knives. Before this test I already kinda knew which of the knives would pass or excel. Sure enough, the Cold Steel, the Spyderco, and the Kershaw all made it to the Max 380lbs rating. BTW, loved this video.. MORE MORE MORE!!!
Jay M Buck isnt the oldest locking design, the German Mercator black kat knife has it beat by many years.
I want the background music to be my ringtone for when student loan collectors call
This test is mathematically inaccurate. As a calculation of the average amount of weight a lock can hold, the values for breaking locks should have been reduced to the last amount they actually held. For example, in the lock back category, the Gerber held 300, not 350. The others held 380, they didn't break at 380. Corrected values are: Lock Back 353 lbs average, Frame Lock 260 lbs average, Liner Lock 210 Average. Relative values did not change, but actual average amounts did.
+1 to Gav, +1 to Mike Bradley.
We decided to be generous with the knives and give them the weight they failed at since our increments were going up by 50 lbs each time. If we had smaller weights and more time we could have been more accurate.
KnifeHQ Thanks for the reply BladeHQ. I only pointed it out because the blades that made the max were calculated to "actual held" weights while the failing blades were given the benefit of the doubt. I was just saying that they should have either all been given the benefit of the doubt or they should all have been calculated to "actual held" weight. Still love the video.
I just love watching 5.11 break
Thats what i thought😂
Lock back has always been my favorite, I like not having to put my fingers in harms way to close the blade...
Who here hasn’t cut their thumb closing a frame/liner lock at some point?? Be honest
Ive actually cut myself more with a lock back
Spyderco was one of if not the first manufacturer to do this and published the break points. For a short time there was an arms race to produce the highest lock strength which even exceeded 1000 in.lbs . However it is a next to meaningless measurement because in use locks fail mainly by instability and no one can apply 200+ lbs to a knife in a strength linear load so side or lateral loads will be the dominant failure point in hand. Hence why it is easy to find reports of locks breaking and even more releasing but it never takes near that kind of force.
quick sharp force seems to affect locks more drastically than slow loads.
That is really impressive on the Buck Ranger, old long-lever lockback mechanism was designed well before the era of 'tactical' folders, yet it holds up.
+Peter Bednar Definitely. This gave me extra assurance as I recently received my custom buck 112 with S30V in the mail. So glad I purchased it.
+Peter Bednar Never been a fan of Buck, but I did own a couple Case knives over the years. (never had a single failure in that time) I recently replaced the Case after 20 years of abuse (the others were lost). Looked at a bunch of different knives before I settled on the Cold Steel Recon. Got both the 3 and 4" version and couldn't be happier with my decision.
The Triad locks really are the best, but certainly not the greatest for closing one handed. It's a trade off I'd make again in a heartbeat. Ease of closing isn't the most important aspect in whether or not I'll buy or carry a knife. Lock strength, durability of steel, and ease of opening are more important. Cold Steel Recon fits that bill for me.
It's settled, I'm going to keep my cryo and tenacious.
what a great review/test. Just goes to show you that most lock 'fails' are operator rather than equipment. Nice work guys!
Right off the bat when that knife blew up and that guy said what the F are we doin? I uncontrollably burst out laughing at a deafening level. That is a rare thing for me.
you should do a benchmade axis lock
Blake S most definitely. I want to see how that performs
Never met a guy who owned a Benchmade who actually used it.
@@roberthall5602 accurate from my experience as well
I cant believe the cryo 2 did so well! Same with spyderco! These are AMAZING knives when you consider how cheap they are! You are actually getting more then your paying for with these.
There are a lot of debates going on what it's safer. But who is puts over 200 pounds of force in the opposite of the cutting direction on one of these knives? Have youb ever had a liner lock fail on you? I mean of course there are always some catastrophic failures but I don't believe that it's really a big issue in real life situations.
Love that's the tenacious did so well, it gets so much hate but it's really one of my favorite knives
Awesome comparison! Concise, succinct and utterly relevant to knife community! Thank you.
Dr Dave
Great video guys!
Please do more videos like this! One of my favorite videos ever!
+UltraDude_2000 Its coming soon....Lock Strength Test II.
Awesome, thanks so much!
Best video from you guys in awhile. Can't wait for part two!
Jesus christ I'm glad you guys learned some basic safety precautions in between the two strength test videos lol
"why dont we use a crkt liner lock??" "sure lets use one of the cheapest ones they sell......and then we will compare it to a fucking tenacious" this is a joke.....i love you blade hq but what were these two guys thinking
Good setup with the test, but would have loved to see at what higher weights the knives which "maxed out" would fail! Maybe a part 2??
A part two with more weight and differently lock types if very likely, so keep watching...
Awesome!
Way cool video guys. I loved seeing the comparisons. I would love to see another one in the future.
Wanted to have a Tenacious since 2014 and today i finally decided to order one
The Gerber failed. What a surprise.
+rocky balboa ll, so what was your point, others failed as well
+Jim Akemon he just means that it was expected that Gerber would fail
lol, It was expected that all of them would fail at a relatively low weight. That why the testers didn't use a higher table...Think about it and look at the description, they didn't do the test to see if each lock could hold 100 lbs. They wanted too test to failure. My statement still stands. Now if rocky had said "The Gerber failed at a low weight. What a surprise".....That would be different, as it's well known most Gerber's are junk
Failed at 370 still pretty good
Please do a part 2 with higher end knives....
This is awesome. One of yalls best vids in a while!
Very good comparison. I figured the lock back would win since it's the oldest design for knives since making folding knives. Good job. Love ALL my Spyderco's with lock backs.
fantastic video, i would love to see how the paramilitary 2's compression lock and bechmade's axis fares...
I have a cold steel Those are strong
This video must have taken a lot of time and effort, really impressed.
Great video. Yinz did a fantastic job with the whole thing!!!!
Im glad Kershaw maxed that's one of my favorite brands same with buck and Gerber was a bit sad about gerber
Did you fix the weight from an equal distance from the pivot on the folders? its the moment that destroys them so a slight difference in distance between the different folders could easely mean +- 50 pounds or more.. interesting test though and I thinks its a great service KnifeHQ
yea i was thinking the samething, you can make a bad knife look as good by hanging closer to the pivot
Great video, i was surprised on some of the results.
FANTASTIC video. Great work gentlemen.
I’m really impressed with the Spyderco! They must make a good liner lock. I’d love to see a Spyderco Compression lock in another video, maybe one that can take more weight
Spyderco makes a GARBAGE liner lock.. ALL LINER LOCKS ARE GARBAGE. they will all take decent static weight.. but if you tap it , its over
To be clear .. its not spydercos fault.. its the lock itself... Any slight goof in the angle of the lock surfaces will cause failure.. anf that means the slightest wear of the contact surfaces will cause the same fail... Its really a small window.. thats why production knives have trouble with this.. and even high end customs... The tolerance is the problem in production, and the wear is the problem in the custom.. liner locks are garbage. Frame locks are better because the thickness of the lockbar.. they resist vibration better. And allow more material contact between the surfsces.
@@no.step.on.snek.2423 Liner locks are fine drama queen.
@@no.step.on.snek.2423 liner locks are fine, if your doing anything ultra heavy duty, then use a specialized tool like a spinning saw, or buy a fixed blade full tang when applicable. But seriously, know what your knife can cut and not cut, a knife isn’t meant to go through metal period!
u need to do one with the different type propriatory locks like on benchmade ,some higherend cold steels and so on
the soundtrack mixed with the sounds of the weights falling make this sound like something from a ps1 game or old DS games. pretty cool
most all did better than i would ever have thought..gr8 test Thxs guys
Great vid guys! At 3:07 you can see the lock failed before the handle on the Gerber,,,
Yup. They must've not looked at the slo-mo carefully.
Surprising results! Very nice work guys.
Mmm that's awesome! Cool test. You guys should start a video series compairing all the most popular knives
I would love to see a follow-up video with more knives being tested ... including compression lock knives like the Spyderco Paramilitary 2 and Yojimbo 2.
Triad is king in this type of stress test. No contest. I wanna see spine whacks and overstrikes!
9:05 godd to know i hang 380 lbs on my knife daily, this should come in handy
This a great test for lock strength....but I don`t cut that direction ,what about a stop pin test in the direction of a cutting motion to duplicate cutting ?
My thoughts exactly...😑
Very good point and observation. I didn't think of that. I guess the main reason is everybody is worried that the knife will close on their fingers since they are right where the blade goes when you are holding the handle. If the stop pin breaks you wouldn't normally get cut. I had a cheap Frost knife stop pin break when I was cutting cardboard boxes down once but no injury. Just tossed it into the trash and moved on.
Thanks for this tests!
Fun watch. Very interesting to see how each knife and lock type held out.
If the test is meant to compare types of locks, you need to factor out the variable of quality control. Next time I'd suggest you test the different lock systems from the same manufacturer. Otherwise we don't know if it was quality control or lock system that caused the knife to do well. Still fun to watch though :)
With a cold steel triad-lock, not a lockback, you just don't have such equipment to break it at all, guys.
I was thinkin the same thing. 380lbs isnt even close to enough weight to break a triad.
You guys are great to deal with. Very nice service
I love that of all the knives you showed I own the Buck, the Spyderco and the Kershaw, the ones that did the best and none of the others.
Compression lock and axis , thank you
not complete without axis-lock and spyderco/sog versions
It would never be "complete" unless they tested the dozens of different locking mechanisms. They aren't going for complete, they are going for the most used locks and comparing them.
i enjoyed it but he is right you forgot Automatic Knives, Out the Front, and fixed bladed knifes :)
And button locks, and midlocks, and sub frame locks, and piston locks, and ball locks, and balisongs, and compression locks, and titanium compression locks, and collar locks, and bolster locks, and Klecker locks and even more than that... No way they would have tracked down disposable knives to do this little test on. They certainly didn't forget about them, it would be much more time consuming and expensive to do it so they tested the three most used locks.
Yeah
That was a lot of tests in a very short video. Kudos to production crew. When I was a kid my step father's Buck lockback failed and the blade cut into bones of two fingers. A few stitches and they healed quickly. 20 years later he lost both fingers when his glove got caught in a drill bit extension.
Not surprised, great test!
look on the bright side, now you have a couple of fixed blades
cold steel all the way!
TNPmarksman shh your scaring the kids sir
Awesome job guys! I wish there were more tests like this.
+1917cutlass ruclips.net/p/PL94IDmbVVVlo0xf6KuQBIa2w_0vDvUQdd
Very very interesting test. Thanks for this video.
Spyderco!!
So you guys did this test with 0 eye protection?
tim moran Just for the first round, after that we didn't forget to put it on.
China's High End EDC I was gonna say that too, lol. You guys make good videos; don't want anyone blinded!
I found this good video and decided to buy which knife.. Also, I decided to buy a knife from your store, not from Amazon because you worked hard on this video and we do not waste money to buy a wrong knife. thank you.
Ive onwed a tenacious(lost after 5 years edc) and a kershaw cryo 2.. Loved the tenacious. I like the cryo, but it doesnt feel right. Super cool to play with. Edc a pm2 now. Its perfect.
380 lbs in increments of 50lbs?
I like how all the knives i was interested in before the test did 380 lbs
You have good taste. I'm airdroppin bitches to your pad
I want to see this again with axis lock, compression lock and button lock! Also a play of between a Chinese folder, a £50 folder, £100 folder and a £250+ folder! Maybe one on full tang and tat tail etc. great video
This was a great video guys. Keep em comin.
Come on man. In the real world are you ever going to experience a 380 pound force against your lock? Any decent folder is going to have a lock you can't break unless you're going loco on it.
I'm not disagreeing with you, but with more sudden/violent change in pressure, wouldn't it fail at a lower measure? So this isn't calculating a realistic every day measurement, rather it is giving a comparative scale between the different models and designs
Kershaw never failed.
Thank you for noticing
What an awesome idea for a video. Great job bladehq
I have the spiderco, glad it held up even though I'm not planning on that much abuse with it
Really cool video guys I would love to see more stuff like this.
Great test and editing.
This "test" is nuts, there are so much factors like locking mechanism material, handle material, length of the blade etc.That said, i was really impressed with the Spyderco.
Cold steel, Kershaw, and spyderco are my three favorite knife makers. And all three of the knives made by them took all of the weight!! Looks like not all knives are made equal.
Wow I was not expecting that at all!
Wow, the Spyderco, that was impressive. I'm gonna have to buy a Dragonfly II now just to reward those guys for making such strong linerlocks.
Great test
Love the fact that you guys are using brake rotors for a vehicle as weights