STR What company has the best quality Liner lock?

DaveReb

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I'm thinking about another knife and with all the talk lately about the Dejavoo I'm thinking about pulling the trigger on a Mini. Anyways before I break down and order one I figured I'd ask you what company has, IYO, the highest quality,thickest liner? and specifically what knife(s)?

TIA
Dave
 
Dave---You might want to post on STR's Forum. I bet he mentions the Sebenza and the Emerson HD series and Strider. Goodluck, Dave!
 
Contrary to popular belief around here I am not comfortable pitting one company against another if I can help it. The fact that there are many more liner locks in this industry than all other locking type folders is worth mentioning I think. Its been said if the liner lock did not exist the industry would be 2/3rds the size it is now. I would say due to this that we should expect more issues with the liner lock and indeed that is the case. I would say the liner lock is the most controversial lock in the industry for a whole lot of reasons and at the same time the most popular in the industry for a whole lot of reasons. No two makers or manufacturers seem to have the same thoughts on what works and what doesn't, what is correct and best and what is not or even what the liner lock is or is not capable of handling. No two individuals seem to have the same ideas of what its characteristics are under load either. Testing brings out some strange results and if nothing else testing proves that this type of lock is quite simply the most unreliable type lock made in folding knives, particularly in certain uses that load the lock with extremes of pressure and wear.

Not wanting to point fingers or be accused of having some agenda, because I don't, it gets tricky for me these days. I am a political atheist when it comes to being asked these things and will not drink the kook aid or tow the party line just because of majority opinion. I know enough to get in trouble and that can be a bad deal for guys like me. I get a large sampling of knives sent to me for work other than lock repairs so I get to see quite a bit of todays liner locks as well as others both when they need work and when they are working fine and only here for something like a pocket clip or just some new clothes. A surprising number of them defeat with ease that owners are completely unaware are so unreliable until I notice too and yes even some of your favorite ones.

Generally speaking I like and prefer a 7 degree angle for liner locks. Thats flatter in case you are wondering. It seems in my observations that Kershaw, Cold Steel, Buck, and a few others seem to use this angle or very close to it on their liner lock products consistantly. Some of the 12 and 15 degree angles from other companies really scare me. Actually the inconsistancy of some scare me also. I've tested some of these that are flat and sharply angled and the flat ones are more reliable. I've found with the ones above 12 degrees that they defeat far too easy when the contact interface is pitched that sharply. Usually they hold for a bit but after a certain amount of pressure on the spine or tip of the blade the lock just slides off even if its titanium which is known for sticking to dissimilar metals. Needless to say, when this critical pressure point is reached the lock slides off the contact interface and the blade closes cutting anything in its path.

Again though even the good angled ones can defeat. They all need tested to be sure they are where they can be trusted for normal use. I have a liner locking folder on the way back to one of the above mentioned companies for easy defeat problems that just arrived brand new in the box the other day.

One of the main issues with liner locks is of course how much of the lock actually gets out behind the blade. Most all the problems associated with these are on newer knives people buy thinking they are ready to rock when in fact makers and manufacturers would be well advised to warn the user to break it in first. They'll tell you its sharp but you are left on your own for the lock lessons.

Cold Steel's Peerless liner lock is my favorite in the industry. I've tested the crap out of some of these and they are impressive a high percentage of the time. Where they are not so impressive is in how hard they can be to operate. They rate the worst for ease of use I'd say but once they break in they become very sweet and are far more reliable than most for both wear and long term abuse based on my own testings. I'd have to say they rank as one of the stronger ones also. Don't get me wrong. Lynn Thompson is not my favorite individual anymore than Mick Strider or Duane Dwyer are but they make a fine product. Speaking solely on the product I rate what I've seen very high in the Peerless locks by Cold Steel. Their locks of this type have held up to more free hanging weight than many other so called hard use folders.

I like Kershaws knives and feel that many of their products offer much more bang for the buck than many knives three or four times the price made in the same country, made with the same materials and often times by the same processes.

I'd have to say these two, Cold Steel, and Kershaw are my favorite liner lock makers. Spyderco, Buck, and BenchMade fall in after that with Emerson dead last for me mostly due to the crappy finish which I kid you not is just flat out ignored on many of the ones I see but for the most part they function to a high level of accuracy and reliability but in my testing and my opinion no more so than a good Spyderco if more so at all. Still though to me a liner lock is always going to be my least favored style of lock. I just don't much care for them and I never and I mean never recommend them to someone that wants to hard stab. This to me is insane but hey, do whatever you want. I personally would sooner hard stab a mediocre frame lock I can get my fingers wrapped around on to secure the lock than I would even the best liner locks made.


STR
 
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STR,

What's your view on the effectiveness on the modification that Spyderco has on their Military liner locks?
 
Well, I know a lot of guys love that knife. I've not made one defeat but then again I've not really tested those out a lot like the others because I've not had one of my own very long. I bought one a long while ago and found it to be less than I wanted so I sold it to someone that loved that model. Mine had the 440V steel in it. The Millie lock sure seems to move around a lot and slide on more than one example I've had here just testing it in my bare hands with my standard hold tight with both and apply spine pressure to try to close the blade. However the locks do usually seem to slide down to a flatter spot on the contact and stay put instead of sail right off the contact and let the blade go free like I've seen in many others.

Generally speaking the Military folding knife was designed and built before much of the current accumulated knowledge we have at our disposal today was known. Knowing what I know now on how liner locks can behave in a bad way on longer more leveraged handles with long blades that tend to allow greater pressures and easier flex and twist torques I tend to be very cautious of them, particularly when I've seen evidence of the lock moving from spine or tip pressure. Not to pick on the Millie because its certainly not alone but I've had a fair number of those sent to me with serious blade play that had developed. Some of those were turned into frame locks rather than have it repaired again for whatever that is worth.

I think Sal does a lot of his own testing but I look forward to seeing that blade set up in a more appropriate lock mechanism in the future. One thing it does have going for it is the fact that its strong but many liner locks are strong. I'd gladly sacrifice some of the strength on many of them to make them more reliable and less surprising in how they can behave during use. You can't really predict how a liner lock will behave even on knives you think you've tested and gotten to know very well. Just when you drop your guard is when something strange happens or so it seems to me. Granted I'm usually pushing them when I test them but thats what I'm talking about. You can push and push and be really impressed and the next day do something very simple by comparison and suddenly see the lock defeat. Then later you can't repeat it no matter how hard you try. Sometimes it makes no sense at all and you are left standing there scratching your head. BTDT as the saying goes.

STR
 
I have always preferred lockbacks personally but since the advent of the frame lock I'm a big fan of those also. I much prefer those over liner locks.

Axis locks and all the clones of that system are great also and I've had several. Its easy to recognize all the strengths of that lock but you know, its just never rang my bell the way the other two mentioned do so thats primarily what I buy most always. When I buy liner locks its usually after checking one out and knowing I can turn it into a frame lock later. :D Which is just one of many reasons I prefer that style lock. Its nice when you can actually make your own so in that regard I favor both the lock back and frame lock also since I can make them. Not like I can build me an axis lock or one of the other proprietary lock systems without legal issue. Sal told me he was licensing the compression lock so I could make those and I thought about it, but its another one that just doesn't do much for me so I passed.

STR
 
I can't believe you didn't mention Emerson!!!!! Maybe you did and I missed it. I have always questions liner locks myself, but Emerson has it down IMO. But I don't have the experience that you do, STR. Thanks for sharing, great info!
 
Emerson? The question was 'who makes the best liner lock' and Emerson in my opinion lags behind the others for all around reasons as to the definition of 'best.' However function is not the only thing I look at if I'm determining what is best. First of all, the term best is so subjective to begin with that its hard to be objective in reply for anyone. For some best would mean best in all areas including fit and finish which would immediately exclude knives like Emerson because, well I mean just look at them. Ernie gets away with some of the worst finishes in production knives. This is nothing personal against Emerson so don't take this wrong. Just pull out one of yours and look if you don't believe me. Often times when I spit these kind of things out people think I'm being personal. I'm not. I'm being factual. Also, Emerson knives is in my opinion the corner cutting king in the industry for many reasons, fit and finish being one of them because its non existent. Quite simply put you can buy a cheap $19 Mantis knife with a better finish on it than the highest dollar Emerson folder.

I wish I could rate them higher than I do but I don't, mostly due to the poor fit and finish on virtually every one I've seen as well as other things.. One of those other things is the chisel grind which obviously is not for everyone. Emerson stands out here. At times folks buying one for the first time feel slighted like, whats this all about and I've had them write me asking me why he does one side grinds and the wrong side at that, as well as questions regarding whether I can resharpen the bevel to a true V grind like they are used to. Most are not aware that to do that voids the warranty so once again we have another ding for why they can't be rated best in my opinion.

But as to why they were not mentioned. You may not like it but you did seem to want to know why they were not mentioned with your surprise that I didn't even give them so much as an honorable mention. If you were to ask me which I prefer personally if I was looking at a liner lock my answer would be the one that works regardless of who made it. Doesn't matter how good it looks, so I do have some Emersons but many other EKI knives have fallen short of what I expected or wanted just the same. If it doesn't function its no good to me because above all else it has to work and there is nothing worse than a folder lacking in other areas like fit and finish that also doesn't work. I pay particular attention to the contact angle when I'm buying my own liner locks which is one of those areas where I could get real technical but I'll spare you. I also do not buy into the BS that the thickness does not matter. Most of the guys saying that only do it for marketing reasons because they make and sell them with thinner liners themselves so of course they have to say that. Look at what they carry in their own pockets though and you'll see what they really know in their hearts IMO. Thicker not only wears better but it flexes less and quite frankly if I can put moderate spine pressure on the blade with the knife in the opened position locked and I can with that little bit of pressure move the blade away from the stop pin and flex the lock I won't own it and if I do its just to collect, certainly not to use. Not only this but thicker liners are looked at more favorably across the board by end line users as inherently more valuable except for the severely crippled koolaid drinkers that are blinded by the faith. Lets face it beefy is better in the eyes of many. I base this on more than my own frame locks too. But for example, if I offer .125 or .160 thickness titanium to someone they go with the .160 most every time.

Lets compare the Emerson side by side briefly with others. You can buy a BenchMade Axis Lock and for less than an Emerson and you won't see laser cut marks or sharp edges on them like you routinely do on any Emerson you buy even at $100 less in cost to the end line user. Nor will you have a gritty action but instead a smooth as silk action on most all of them. When you don't get this from other manufacturers, be it BM, Spyderco, Kershaw, or any of the other big ones its not referred to as standard production issue as if its to be expected like it is by Emerson (its not and should not be expected) but its looked at by all the others as a flaw and they fix it! Thats the fact its nothing personal. When I wrote Emerson complaining about a finish on some liners and scales with laser cut marks and rounded edges causing very visible gaps under the G10 where the liners and G10 meet I got an email back from Ernest himself telling me they were standard production liners. In other words too bad Steve! No offer to fix it was even mentioned. I can't share the exact words or the personal letter to me but the jist of the letter to me was this. "Thats the way they are, have a nice day." Now you can take this anyway you want it but thats basically saying in so many words its to be expected and it is nothing unusual or out of the ordinary. In other words they are not concerned with finishing for production Emerson knives. Ernie is a Guild member so you can't tell me he doesn't know how to finish. His customs are finished by the way. Its just for productions that the corners are cut on finishing. Again, this is evident looking at them by the way, if you don't like my answer. And although its just my opinion on how they rank since I'm the one that was asked, the things I speak of regarding finishing are factual.

Oh, and this model I happened to write Emerson about was a very expensive semi custom model with a hand ground blade by Ernie himself. Even that one which is one you would think is a step above a normal production folder, and the most expensive knife I have ever bought new, has an absolutely horrible, even embarrassing finish on it if it was anyone else's knife. But to them over at EKI its just par for the course and to be expected to have a crappy finish with gaps, laser cut lines visible and sharp edges all around the inside that the new owner must take down if it bothers him and this even on ones with the 'semi custom' level blades in them! Honesty the finish on this $800 one is not one iota better than my $117 Ebay special CQC7A Emerson folder. Both are crappy with G10 not flush, laser marks showing, burn marking in some places, gaps under the scales with light shining through and so on. You may think Emersons are great for function and mostly they are but for the ranking of best I'm sorry. That title would be undeserving. Still wondering why I don't consider them to be so nice?

More? Emerson uses a titanium lock side and a cheap 300 series stainless non locking side liner. This is fact. This is to cut cost plain and simple don't kid yourself. That stainless is cheaper to use and buy than titanium. Its all about money but it didn't reduce the cost at all to the end line user you see? The cost to you stays the same and at that retail price it just increases the profits for Emerson using stainless on one side. Someone told me when he quit using the green G10 it was also about cutting cost but I have not verified this. Anyway, Ernest diluted the products in his line up with these stainless liners in 2007 and I'm not the only one suggesting this and thats just telling it like it is nothing personal intended or implied. We all know its all about $. Stating facts is all it is. I simply call it as I see it.

Its no different than the post office raising rates to make more profit but cutting back hours and days opened giving you less at the same time. Nothing you can do about it when its the governement but in a free market the companies should be reamed royally for it but instead with Emerson they are praised to the high heavens and the fans put up with it and he gets away with it when others would dare try. Yet people can't figure that out at times and still ask me why I rarely mention Emerson as one of the better liner lock companies. Quite frankly due to just these things I do not consider them to be one of the better manufacturing companies. Compare a $179 Emerson to a $100 Kershaw sometime looking at just the finish and fit of things like the scales, the liners, sharp or rounded edges and so on and yet both locks function and both are quality made knives. You'll see that although both are made in the USA one stands out as lagging behind for finish and its the Emerson plain and simple. Emersons typically are very gritty and stiff when new compared to even many cheap knives and particularly Kershaws and also from all the other manufacturers. Look them over and compare if you don't believe me. Kershaw makes a better liner lock all around than Emerson. I base this on all areas though, not just function and forgetting the hype which is meaningless drivel. I was a field tester for Kershaw and trust me. Their knives work just as well as any Emerson period! But forget manufacturers or names. You have to look at these knives forgetting the name on them.

Look at a new knife as if it was a blank sterile knife you had no idea about. Forget the aura, the legends and all the hype. Pay no attention to the logos or the name or the DVDs or the other hype BS surrounding them to market them. Look at them this way and what do you see then looking at it objectively? Looking at an Emerson this way as a blank slate comparing it to a Kershaw, BenchMade, Spyderco, Lone Wolf or other knife looking at them as blank slates also, in most cases I see a crappy finish on a more expensive knife, a gritty action on a more expensive knife, and a lock that functions with the same level of reliability and ease as the better looking ones with the better actions and one that has a weird angle on the edge or a one side edge that means adjusting how I will need to maintain it compared to what I'm used to. I believe this is how most lay people will look at them. Its how my wife would look at it or a non knife person just wanting a carry knife would see it. Which one would you rate higher? Personally Emerson is at the bottom for me. Quite honestly I think they are a good foundation for a great knife. Why do you think so many end line users send them to guys like me to make them better with some kind of an upgrade? Its no accident really if you ask me. They need help to make them right thats why. That part is my opinion.

Pick up any folder in your collection and really look at it this way. Although I've said it I'll say it once more. You can see obvious laser cut lines all over most all Emerson production folders, edges that have a wire on them at times that can even cut your skin on the inside edges on some. I know because they have been mailed to me to remove this. You can even find some with burn marks left on them from the laser cutter with no evidence of even a tiny bit of belt time to finish them out. If this is important to you then obviously its going to be dead zero in ranking for best liner lock no matter how good it may function. Sometimes you have to look at these things as if you were not a knife nut. Look at them the way your wife would for initial impression forgetting all you think you know about knives and judge it briefly from the stand point of a typical real world non knife nut user. When I do this I'm unimpressed with Emerson knives when they are in that typical new out of the box condition.

STR
 
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I have always preferred lockbacks personally but since the advent of the frame lock I'm a big fan of those also. I much prefer those over liner locks.

STR

Thanks for the quick reply, I like those style of locks myself. Unfortunately, I've got a D2 military in the mail that I've been obsessing over, and now this thread has made me all nervous. Should I really be worried about lock failure, and is there any particular test/ workout regimen you'd recommend I perform when it arrives?

Thanks,
Mark
 
Emerson? The question was 'who makes the best liner lock' and Emerson in my opinion lags behind the others for all around reasons as to the definition of 'best.' However function is not the only thing I look at if I'm determining what is best. First of all, the term best is so subjective to begin with that its hard to be objective in reply for anyone. For some best would mean best in all areas including fit and finish which would immediately exclude knives like Emerson because, well I mean just look at them. Ernie gets away with some of the worst finishes in production knives. This is nothing personal against Emerson so don't take this wrong. Just pull out one of yours and look if you don't believe me. Often times when I spit these kind of things out people think I'm being personal. I'm not. I'm being factual. Also, Emerson knives is in my opinion the corner cutting king in the industry for many reasons, fit and finish being one of them because its non existent. Quite simply put you can buy a cheap $19 Mantis knife with a better finish on it than the highest dollar Emerson folder.

STR

Yeah, I can understand that. I think that any knife w/ a liner lock that gets opened hard like that (waving) will wear down a lot quicker than normal opening. I don't wave my Emerson for everyday use. I just like the added feature for quick deployment if necessary.
 
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No don't be worried. The only people that should be worried are those that don't get to know the knife first basing their trust in the locking system on blind faith in the maker or company or being guilty of not testing what they purchased. No matter how good the company or maker is we are only human. Now and again one that really wasn't quite right makes its way out there. Unfortunately for many that carry these they are not even aware of it until its too late.

Most all of the liner locks can be safe to use daily once they are broken in and more often than not the liner lock and even many frame locks need to move out further from use to be optimum before you can trust them for heavier tasks. Once you see that the lock has moved out sufficiently to secure the blade its a lot safer to use. As I said, most of the worse cases I hear of are when the knives are new or when they are so worn out they should have been retired. Most points inbetween are fine for normal use. But the key is getting it there. Some makers tell you that there is no point in moving the lock in anymore than half the width of a .050 liner thickness. Others say the full thickness and any further is of no benefit. I disagree with this because in my own testing sudden shock to the lock can make it pop off very easily when its close to the edge like many are when new. Once the lock gets out to double or triple the thickness of the lock on a thinner liner then its optimum for handling a sudden shock more reliably its that simple. If the lock is barely coming out to get in behind the blade its precarious more so than many realize. Sure in normal use with straight line forces its holding up but what happens the first time you twist and flex that handle in conjunction with those forces on a knife with the lock barely coming out to get behind the blade? Well, testing proves the lock can defeat quite easily on these folders and a high percentage of the time. A very surprisingly high % of these will fail just a simple spine pressure test like I describe below when so the lock is not coming out behind the blade to actually move in a bit better. Once they are broke in though they usually get right through this test with ease but I'd also tap it once or twice on your boot for a quick real world duplication of what could occur in use. Note: I did not say 'whack' I said tap. Big difference.

I like this test at the link here that someone else started on my posts. Its here posted also somewhere but this one was easier to find. Many aspects of this with the making the lock defeat over and over if it first slides off easy are hard to explain. I don't know really why it works only that it does. You'll note very soon the more you do this that its much more likely that the longer so called heavier duty folders fail this test new out of the box than many shorter less leveraged gents liner locks do. There is a reason for this. A 5" or 6" closed folder with a 4" to 5" blade allows you to put much more pressure and weight on the contact at the pivot than a 4" closed one with a 2.5 to 3" blade. Its night and day by hundreds of pounds of pressure.

http://www.freewebs.com/strs-knowledge/folderlocksstrength.htm

STR
 
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