BladeHQ "Lock Strength Test II": Dynamic Pressure and Suspicions Confirmed

Scurvy092 said:
I'm having a hard time of thinking of a scenario where I'm going to put a large load on the lock.

The only thing I can think of is wedging the blade and the instead of wiggling it loose and continuing the cut you slam down in the handle even harder. ....................
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Thats sort of my thinking.

Not a very likely scenario IMO either.

I mostly use fixed blades when skinning deer, but have used the occasional folder with no problems, though deer joints and other work can be tough on the locks.

Mostly its just a hassle cleaning a folder after messy deer skinning work.
 
ALLHSS said:
Again, maybe some people don't make mistakes while cutting or don't cut the kind of things that take force to cut through. I do, and sometimes those mistakes have a good bit of force behind them being that I'm a very large person, so I appreciate a lock that is reliable.
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Sure, we all make mistakes.
 
ALLHSS said:
I agree, it's great to have a dealer that will honestly compare and destroy their stock for more knowledge (and exposure).

I think FRN is great.
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+1

And yes, FRN rocks. Gives us a quality product at an affordable price. FRN is IMO vastly underrated.
 
BladeScout said:
Technically correct:) You quoted Scurvy who agreed with my statement in a one syllable word, but no harm no foul....and certainly no problem:)




Maybe thats because you keep telling knife geeks to use slipjoints exclusively (Im KIDDING!:))


Agreed.
Mistakes with knives can and will happen.


No problem. We are having a civilized debate. You contribute just fine here on the forum and I respect a lot of your writings. All is good:)



Good point.
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Yeah definitely man, I sincerely meant no bad attitude toward you. Just like I think it's silly to say someone who occasionally makes mistakes should only use fixed blades, I also think my suggestion that someone who never makes mistakes should only use slipjoints. Coincidentally, I carried slipjoints more than modern knives or fixed blades combined last year... ;)

I think these tests are more credible than Cold Steel style abuse tests, and are applicable to real world normal usage in that I make mistakes sometimes while cutting.

Some don't think they're credible or useful and that's fine.

Anybody else surprised by the Sage? I know I was. I knew the bolt lock was strong, but I guess I underestimated carbon fiber. I thought it would fail.

(Also, I always forget that with how often I post here in my free time people might be able to recognize me. I better stop saying dumb things and being a jerk haha)
 
I think those tests are very interesting. To me a stronger knife is a better knife,regardless of the chances one will ever need that strength. There s always that chance the lock strength will be needed.
 
ALLHSS said:
Yeah definitely man, I sincerely meant no bad attitude toward you. Just like I think it's silly to say someone who occasionally makes mistakes should only use fixed blades, I also think my suggestion that someone who never makes mistakes should only use slipjoints. Coincidentally, I carried slipjoints more than modern knives or fixed blades combined last year... ;)

I think these tests are more credible than Cold Steel style abuse tests, and are applicable to real world normal usage in that I make mistakes sometimes while cutting.

Some don't think they're credible or useful and that's fine.

Anybody else surprised by the Sage? I know I was. I knew the bolt lock was strong, but I guess I underestimated carbon fiber. I thought it would fail.

(Also, I always forget that with how often I post here in my free time people might be able to recognize me. I better stop saying dumb things and being a jerk haha)
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:thumbup: Thanks for the words and likewise.

I agree with most points and yes, as mentioned, I was also pleasantly surprised at the outcome and how well some of the locks held up.

I did find the test interesting. This was one 13 min+ test, that I watched till the end.
 
ALLHSS said:
First although frame locks can hold more weight than liner locks, they're not necessarily safer because they are more prone to lock slipping.
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I am not sure if I agree with this claim. With frame lock, the hand can add pressure directly on the lock bar, thus significantly reducing the possibility of lock slipping. Any tests (including this one done by BladeHQ) that do not wrap something around the handle of a frame lock to mimic the hand pressure, in my opinion, are not so valid.
 
sharp_edge said:
I am not sure if I agree with this claim. With frame lock, the hand can add pressure directly on the lock bar, thus significantly reducing the possibility of lock slipping. Any tests (including this one done by BladeHQ) that do not wrap something around the handle of a frame lock to mimic the hand pressure, in my opinion, are not so valid.
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I understand that many people consider the hand grip to be a safety feature on the frame lock, and that's fine if you are comfortable with it, but I do not. I don't always hold a knife in a tight hammer grip, the grip that puts pressure against the lock bar, and I've found in use that the hand doesn't consistently put pressure on the lock unless in that grip and can actually pull the lock out of the locked position when doing scooping cuts toward the lock side.

But I will say that my claim you quoted is based on my experiences with frame and liner locks, and my observation that the geometry of the tang lock face on frame locks is usually a steeper degree or curve than on liner locks. It is observational experience, not scientific or anything.
 
ALLHSS said:
I understand that many people consider the hand grip to be a safety feature on the frame lock, and that's fine if you are comfortable with it, but I do not. I don't always hold a knife in a tight hammer grip, the grip that puts pressure against the lock bar, and I've found in use that the hand doesn't consistently put pressure on the lock unless in that grip and can actually pull the lock out of the locked position when doing scooping cuts toward the lock side.

But I will say that my claim you quoted is based on my experiences with frame and liner locks, and my observation that the geometry of the tang lock face on frame locks is usually a steeper degree or curve than on liner locks. It is observational experience, not scientific or anything.
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That is certainly a valid point. And I do sometimes, e.g., only pinch the butt of a knife to increase its reach (in which case the grip pressure no longer exist). But still, I am not entirely sold that a frame lock IN USE is more likely to slip than a liner lock.
 
I mostly carry high end frame locks, but exerting that amount of force against the lock freaks me out regardless of how much I trust my knives. God forbid if something happened... Those forces + razor sharp edges = Missing fingers!!! It sends shivers down my spine!
 
Scurvy092 said:
I'm having a hard time of thinking of a scenario where I'm going to put a large load on the lock.

The only thing I can think of is wedging the blade and the instead of wiggling it loose and continuing the cut you slam down in the handle even harder. But that just seems dumb to me.
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I agree, Yes a strong lock can only be a good thing but I can not recall a time when I was using my knife and I was apprehensive about the lock failing...Maybe I am using it wrong
 
It was a fun video to watch. The test will serve as one of many data points for me to reference but it will have little impact on my opinion of various knife locks. I generally carry a folder and a fixed blade for a reason.
 
It hurt to see them break.

But it was good to see how they did.

My guess is that based on the Delica's performance, a Tri-Ad lock would have done really well.

Edit: With the liner lock, I wonder how a Gayle Bradley would have done vs. the Tenacious.
 
full flat grind said:
It hurt to see them break.

But it was good to see how they did.

My guess is that based on the Delica's performance, a Tri-Ad lock would have done really well.

Edit: With the liner lock, I wonder how a Gayle Bradley would have done vs. the Tenacious.
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I agree, I really wish they would have used a liner lock that was in the same price and quality range as the other knives.
 
Better test and better folders.

Delica is relatively weak around the pivot area so the blade snaps off.

They should've chosen all Sage models for even fewer variables. I think the Frame lock test would've done better with a Sage 2.

Sage 1: Liner lock
Sage 2: Frame lock
Sage 3: Bolt action lock
Sage 4: Back lock

Sal said there'll be a Sage with a Compression lock and Button lock.
 
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I found it interesting that the liner lock, after failure, wouldn't close all the way which could save fingers. Also, the compression and bolt lock were still usable after failure.
 
RamZar said:
Better test and better folders.

Delica is weak around the pivot area so the blade snaps off.

They should've chosen all Sage models for even fewer variables. I think the Frame lock test would've done better with a Sage 2.

Sage 1: Liner lock
Sage 2: Frame lock
Sage 3: Bolt action lock
Sage 4: Back lock

Sal said there'll be a Sage with a Compression lock and Button lock.
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That's a great idea
 
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