Brief review Kershaw Cyclone Ti/ZDP

Some very interesting comments, Thomas. IMO it's good to get the manufacturer's perspective. We can wish and hope all we want for Star Wars light sabers for $47.88 at WalMart (on price rollback, of course) but if they simply aren't commercially viable....

Speaking even as a dark sider :) I'm not all that crazy about sprint runs. Mostly I think they just feed the urge some have to hoard and collect limited-run knives that will, ironically, never see a stone, or be used to cut anything more challenging than a bit of twine or a little paper. However it seems to me that if a collaboration were worked out with somebody like Krein, where the blade gets a near custom, high-performance grind, there might be a good synergy there. Kershaw could probably pocket some savings on the finishing, those desiring the 'ne plus ultra' in cutting geometry could get what they want, and even the hoarder-collectors should be pleased getting a potentially even more valuable piece. Plus I don't think the additional cost this would add is going to be a big deal to those interested in these kinds of knives.

Personally I'm at about the same place on this STR is ... at 6'1" and 190# it's just not that big a deal to me to have to put a little extra muscle into a cut with one of my EDC's, and not have to be too concerned about the blade failing. And for special jobs, it just gives me an excuse to have other knives optimized for specific work.
 
My thoughts are that they could, but also, that the Japan based factories 1) have too much on their plates as it is, and fitting it into the pipeline would be difficult at best, and 2) the Japanese factories are not likely to go into sprint/limited runs.

The best case scenario is that the US factory will step up to each challenge, and experienced personnel will stay onboard to help drive a higher standard. These last two questions are some that I hope ThomasW will chime in on, questions of this type are really in his domain.

Never even considered their production constraints. Just saw that they release kitchen knives which bend my view of what a production shop can do (Shuns are the only knives I don't go back and thin out because there's no need) and saw that Kershaw makes a few knives in Japan (Gents' Folder and those Onion-designed Splinters) and thought "bing bing bing!"

I know this same sort of stuff can be done in America. We need just need the Japanese government to regulate their businesses past the point of profitability and we'll reap the skill drain like we did from England, Scotland, and Wales in the 18th and 19th centuries. Or we could get good on our own, but immigration is the sincerest form of flattery.

Thom. What I was thinking was a compression type lock. Sal invited me to obtain the license recently and I need an excuse to start making them for when I go for it. But if not that it would almost certainly have to be a lockback. Regardless of whether it can be done or not I ordered a Shun Classic Bird Beak tonight.

This is normally reserved for Hardheart, but you've left me no choice:

You are a bad, bad man. Did you have to mention Shun, birds beak, and Compression Lock in the same post? You are a bad man, Steven T. Rice and I thank you.

Speaking of thin though, my thoughts are that in this day and age tactical knives and defensive/survival type knives in folders and fixed blades are the bigger more profitable thing going even though thin is in for some. I mean even knives the makers say are 'not designed to be tactical' look tactical to me.

Know what you mean. One of my 'non-tactical' folders has a flipper, a huge bolo-like blade, and liners thicker than a human head. Wouldn't be surprized if it didn't have a wallet that says "Bad M-Fer" on it. Still, it has everything that made a knife into a 'tactical' folder in the 1990s.

I must admit in my own mind regardless of how stable or capable the steel may be when thin I just don't feel that in conditions like those any real outdoorsy type individuals like myself will run into in the field that thin is going to really be all that great. As an example, I gave my son a thin bladed knife (440C .010 hollow grind) and it lasted about 30 days before I got it back with a big chunk missing right out of the middle of it asking me if I could make a new blade for it.

That's the thing, though. 440C is capable, but not stable. When it fails, it breaks. If you're lucky, it rolls. There are good reasons why Vermont American uses 0186/8670-modified in tons of its saw blades and why their competitors use L6. Those reasons make those steels 'outdoorsy.' We have folks out in Jasper, AL making knives with single-tempered 1095 ground 0.015" thick for swords - swords and knives which cleave the thick rims on steel barrels with just some micro-chipping at the very edge - because the makers don't know if the users are going to get bored and try abusing the edges despite needing them not to fail or easily be repaired by the user should said failure occur.

Is it being 50% thicker at the shoulder? Having a flat grind instead of a hollow leading up to the edge? Having a steel meant for knife blades? Or all of the above? We could try to isolate those variables by nabbing a 440C blade and thinning out to 0.015" with a wet-wheel (I'm getting better at reading my plastic calipers) and loaning it to your son and see if that makes all of the difference. I think moving towards steels capable of rough use in edge widths capable of low-force cutting is the direction to take. Especially for knives used far away from first-aid cabinets or help. When cutting is done quicker with less force, the user is less tired and less likely to make mistakes due to exhaustion or muscling through. If I'm wrong for having that opinion, I'll change it when I know why I'm wrong and have a better idea on what might be right.

In city life or leisure times its probably fine to have a .005 thin blade but just batoning a blade that thin through some small logs to make kindling would probably be about all it could endure. I know for a fact that the knives Kershaw has sent me for testing can do that. I've done it with them. I'm not saying that they could not be thinner. My Storm II at .017 or there abouts proves it can be a bit thinner so sure they could be but in my mind you have to look at the masses. I think Kershaw does that before marketing a knife to the public.

Now can a standard Storm II hold up to that sort of fun with the softer, yet easier-to-polish standard heat-treatment? That fun including a sub 0.02" edge. If it can, how terrible would it be for Kershaw to make thinner-edged Storm II knives? Maybe very terrible and I don't know, but that's why I'm asking.

I think they know first and foremost how they need to do things to remain profitable. I'm sure that is the first and formost concern of any manufacturer.

There is that. It would seem then that, outside of the cooking crowd and a few whittlers, they're doing what Kershaw needs to do. Whining to Thomas W and Spyderco's Sal Glesser to make the steels on their folders harder and the edges thinner is what I need to do.

On a final note when I stop to look at the blades I've seen being reground, blades that are already pretty 'thin' I might add, that have been modified in recent months by Tom Krein and others to end up being even thinner geometries than they already were from the manufacturer it becomes very apparent to me that no matter how thin Kershaw made these blades it still wouldn't be thin enough to stop certain follks from shouting from the rooftops that they were doing it all wrong regardless of whether it was ZDP189, S30V or 13C26.

Never had a ZDP Caly Jr, but I have a Caly Jr and Caly3 in VG10 and Caly3 in ZDP and they were all thicker than they needed to be. I have two Shun Elites from Kershaw and their edges are the standard by which I judge all high-carbide volume steels (ZDP, S30V, A11, whatevuh). My Shun Elite knives deal with an unskilled cook (some a-hole named Thom) who makes unskilled cuts and sometimes uses the paring knife with a plate as a cutting board. They don't want to dull during normal use and should I dent the edge to heck with a ceramic plate, it pops up sharper after a few minutes on priced-to-own waterstones. If your knife needs to do more than that (and many do), it shouldn't be a high carbide volume steel in the first place. Get some 13C26 and go nuts.

Where'd gull_wing go? :o
 
Just read your post, Thomas W (was typing mine in brief installments). For the high-carbide steels (CPM-154, CPM-D2, S30V, S90V, SG-2, ZDP-189), I want thinner edges. If you need to keep your 13C26 thicker than what I want and softer than RC64.5, well, I'll take that and love it into shape with a belt sander.

Lockbacks or licensing that Compression Lock from Spyderco (like that bad, bad man, STR, is doing) would be very preferable on 13C26 blades, too. Your company's linerlocks have been very reliable for me, but modern lockbacks and Compression Locks are just dreamy when it comes to being reliable.
 
Lockbacks or licensing that Compression Lock from Spyderco (like that bad, bad man, STR, is doing) would be very preferable on 13C26 blades, too. Your company's linerlocks have been very reliable for me, but modern lockbacks and Compression Locks are just dreamy when it comes to being reliable.

My feeling is that you are more likely to see pork on sale in Iraq public markets next week than see this happen any time soon, but stranger things have gone down lately.:eek: ;)

FWIW, I have seen springs fail on lockbacks, and find a good liner lock to be the equal of lockbacks in practical useage, and this includes doing some of the things that Cliff would do. Batoning with a hammer, prying with a cheater bar......

Best Regards,

STeven Garsson
 
S90v? All I can say is just wait until the thin crowd tries to thin a blade of S90V and your really going to hear us complain about the blade grind. As I’ve tried to grind down a S90V blade I can only say doing so can turn a person who is a thin is in believer, into a thick isn’t so bad believer.
I hate to admit this, as I am still a big thin blade guy. However, the extreme thin edges and blades just aren’t what I want for an edc knife. Yes they are great cutters no question about it. However, my hand ground convex edges cut well enough and for me are easy and convenient to maintain and sharpen.
 
Well my Cyclone just arrived today and my initial impressions are very favorable. Fit and finish is great and the SpeedSafe works nice with the framelock. I see what you guys meant about the edge being thick, but it is nice and sharp.

I've got a question for Thomas, or anyone else who knows. What Rc rating is Kershaw hardening their ZDP to? I'm just curious.
 
I did run out of time this morning, but wanted to add another cold truth to this scenerio.

When we do these high end short run products, in this case 750 pieces of the Ti/ZDP Cyclone, these knives took precident over regular production. With the amout of time it took to finish these pieces up, we could have produced 3000-5000 pieces of JYD's, Groove's, Need's Work's, aka new 2007 procuction, you know the actual money makers. Margins go out the window, regular turns have now been missed, customers get impatient, etc..

To go the full monty setting up new fixtures, walking a thin line with warranty, further slowing down regular production, etc.. all in the name of a thinner edge...it just doesn't add up.
So we make it the way we do (same as regular production in this case). Everything is pretty much set up to be ground at .018 to .021, you get an angry sharpener taking it over after that...well there you have it.

To go on further from my earlier post, we do hope to get to a point where it is profitable to make geometry changes efficently, we are just not there today.

When STeven says I get the stinkeye from production, he ain't kidding, but it is important for us (in my eyes) that we do these projects even if we need to sacrafice from time to time.

Hopefully this shows some more insight on why we do what we do, and the tough decisions that need to be made.

How many Evil Empire darksiders do you think exist at this point? Are your numbers growing?

Roadrunner, ZDP is run right at 64 Rc. Curious, would you have noticed the edge if it wasn't mentioned in this thread?
 
According to Craig Green, factory manager at Kershaw 64-65 Rc. See thread in general forum.
 
Well, I will say that I wouldn't have noticed, not because there is no difference to be noticed by because right around 0.02" is what I would expect a knife like the Cyclone to come at and that is ok. As I said, what I expect from a custom piece and one made hundreds at a time is very different. At 0.03"+ for a folder I guess I would start raising my eyebrows ;).

Maybe, I can bring this up once more, what I think is a lot more important here is the edge angle. Mine comes in at 22 deg per side and someone buying a jig to sharpen with little experience might quickly run into trouble. If you leave the blade grind the way it is now and lower the edge angle by five degrees I don't think you would see that much more returns (I hope...). And you would make life much easier for many, many customers....?

I will also say, that I would continue buying these "boutique" runs if they are as well made as the Cyclone, pretty much regardless of the edge they come with. Even if they were completely unsharpened. Those are adjustments I am quite capable of doing myself.
 
To go on further from my earlier post, we do hope to get to a point where it is profitable to make geometry changes efficently, we are just not there today.

Here's to the arrival of those times!

You're already very close with the External Toggle; completely totally don't-change-a-thing there with the Shun series; and three swipes of a belt grinder away with HoB and Roadrunner's ZDP Cyclones.

Are your numbers growing?

Ayuh! We hooked Catamount and BlondieStomp and have crossover from the Japanese-style chefs knife crowd. The user-collectors in the custom bowie crowd are almost entirely fans of thin edges and some of them like the discretion of folding pocketknives. A small, but growing, contingent of the overbuilt impact-friendly steel users are seeing chopping's more fun with thin edges and experimenting with such on their folders. We're growing.
 
I might add that this thread is currently going quite swimmingly...wonder why that is? Anyone?
 
Gee I don't know. What could it be? Its almost as if someone sent their pit bull after you and someone else shot it for ya or called it off! :confused:

STR
 
Thomas, I will admit that I looked at the edge first because of this thread, but I likely would have noticed it anyway. I thin out the edge on just about every knife I own. My favorite test for sharpness is to trim my fingernails with a blade. Thick edges don't work well. When I tried fingernail trimming with the Cyclone, I found that it works but is awkward due to the thickness of the edge. FWIW I certainly understand the restrictions you guys are operating under when you produce a factory blade. I've worked retail enough to know how 99.9% of the population treats their tools. You have to make a blade that will stand up to the lowest common denominator and that can be pretty dang low. Besides, that's what I bought an Edge Pro for.
 
So as of today not exactly a Clone Army?

If you looked at our fingertips, or lack thereof, we might all look like Jango Fett. But just like when they convinced that little Dutch boy that he was barking up the wrong tree, there'll be a large wave coming down the way.

I'm guessing that the conversation is going better because you've discovered your ignore list and added me to it.
 
Guys, while I can understand your irritation at the posts of certain individuals here, calling attention to it doesn't help matters any. The thread's back on track, let's keep it that way OK?
 
I think thats what I'd do also. Take that ZDP down from the 22 degree to a nice 15 degree edge with the 120 grit stone and then follow up with the 220 and the 320 after that and it will be a real biter I bet.

STR
 
this thread has been an emotional roller coaster!
I think I just aged a year. :)

I just ordered a regular Mini-Cyclone. If I like
the ergos I'll be picking up the ZDP when I get my tax refund.
do you realize how many knives I could buy if I didn't have to
pay taxes! Can someone work on that?

Thanks for sticking around Thomas W. I do appreciate it.
 
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