Help me pick a ti folder.

Out of those, I would go for the Southard. It has a great steel, the price is amazing, and it's just a good knife. I prefer the design over the ZT.
If you're looking for a tough folder in the length of the Dua, the Spyderco Techno is also an excellent blade.
 
ZT 560, the dua seems a little too overbuilt for edc for my taste, plus the ZT packs so much blade and a great frame lock at a surprisingly light weight. The steel difference between a ZT and spyderco's steel is very small at best, plus as a bonus the ZT is made in the USA! Enjoy whichever you decide upon
 
The zt is a big knife to carry daily in pocket when compared to the dua so it depends on use - but for comfort I would say dua (561 is a great value and flips open like a dream though). If you go zt make sure to grab a kryptoglow scale, they are amazing IMHO.
 
BgOutdoorSurvival said:
Zero Tolerance 0561

Grayman dua

Spyderco Southard

Which one is best? I would use it as an EDC and a good tough folder.
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just a perception: i don't think a ball bearing -mounted pivot will do well for hard use. a plain pin with bronze washers is the way to roll.
 
I have a Grayman Dua and it caused me to sell all my other high end knives. It's my favorite knife by far. Built tough and buttery smooth. Also made in the USA with top end materials.
 
I've been eyeing the Boker Minos. There is a BladeHQ review on Youtube. Solid Ti, built like a Grayman but with an interesting design. $250.

I've been very happy with my BM 755 MPR. Ti and G-10, with an M390 stonewashed blade that is 4mm thick or so. Some think it is small, it is like a Techno. I kinda like the smaller beefy beasts.
 
I have all that you've mentioned and I carry the 0560 and more recently the Southard as my EDCs. But at work I carry a 0551 and the Dua as my back up. For hard use(probably more abuse) I would agree that plastic sleeved ball bearing bushing are probably a weak link, no proof or testing, just looking at it compared to PB washers. They are all fantastic knives, I'd suggest you try and find a shop with some stock and handle a few.
 
Yes and used in their intended roles they will no doubt hold up just fine. But start adding lateral forces, which is probably outside of their design threshold, and prying or doing other things beside cutting and it would seem to be a weak point compared to a flush full contact washer.

Don't get me wrong I love the knives I have with them but I can see that it is a trade off.

As for steel and edge retention, I believe the Southard wins hands down. It is using CTS-204P, Carpenters version of M390. And Spyderco has built a rep for running steel where it needs to be.

bertosknives said:
the plastic sleeve is only there to hold the steel balls same as some cars and trucks have.plenty strong.
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