EDC Series: ZT 0561 review over several months *in progress*

REK Knives

REK Knives

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Knifemaker / Craftsman / Service Provider
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Stay tuned for more =) Already getting some new footage!


[video=youtube;73Rz3bo16Dc]https://www.youtube.com/watch?v=73Rz3bo16Dc[/video]

[video=youtube;RF7WyCfjK-U]https://www.youtube.com/watch?v=RF7WyCfjK-U[/video]
 
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Processed a deer tonight and ground the meat... there was a lot of sinew trimming. the 0561 held up great although I can see a regrind in it's future for sure! It's amazing how easy it was to bring back the life into the edge when using a ceramic 'steel" or honing rod. After I was done I cleaned w/ soap and water and stuck it back in my pocket... didn't make much of an effort to dry it off. We'll see how corrosion resistant it is over these next few months!!

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I like the 561 it's just too bad it's too large for me. I love reviews like this especially one with pictures of it being used! Can't wait for more to come :D

-Kev
 
sinkrate said:
I like the 561 it's just too bad it's too large for me. I love reviews like this especially one with pictures of it being used! Can't wait for more to come :D

-Kev
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Thanks! I plan on putting this folder through a ton ;) Then I will move to a new folder, some larger some smaller in the future.

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After cleaning/flushing w/ water wiping it down w/ a towel (did not blow out w/ compressed air and didn't clean inside or apply any oil) I let it sit over night. Today I broke it down and saw some corrosion beginning. I wanted to simulate a field situation where you may not be able to break your folder down right away. In this case Cerakote will help somewhat but I will need to play w/ different lubes on the bearings to see what can work or else try to find some ceramic bearings which would fix the problem along w/ a Cerakote application.

All of this will be outlined and discussed in the upcoming video... the rust was mainly coming from the bearings, but here are a few pics:

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So the steel bearings were beginning to rust? Do you think the increased surface area between the bearings and the liners help accelerate that process?

Great review btw.
 
pbwelds said:
I have a 0561 also. Could use a regrind and finger choile.
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I'm not a big fan of finger choils since it waste's extra cutting edge but it will definitely be seeing a regrind!

fq55 said:
So the steel bearings were beginning to rust? Do you think the increased surface area between the bearings and the liners help accelerate that process?

Great review btw.
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Yes... it was the bearings. I don't think the space/air there accelerated the oxidation, it would have done that anyway probably. I need to find some type of light grease lube that has good resistance to washing out. Another issue/worry I have w/ this knife is that the bearings can permanently dent the Ti if you over-tighten the pivot which will give a bumpy feeling to the action. What ZT (and plenty of others) neglected was to install a hardened steel race washer. This will also be discussed in the upcoming video.
 
Hmmmm, I am going to guess that those are not SS bearings?
(That would be sad, that's one place on a knife I would want SS)

Unless this knife was neglected, I can't imagine SS with that kind of reaction from what you have done since you got the knife.....

You check out some knife maker supply sites to see if there are any ceramic bearing options you can swap those out for...
That would take care of both lubrication and corrosion issues.
Just depends on the pivot screw size, and OAL on that closed bearing, but it looks fairly generic......
 
JR88FAN said:
Hmmmm, I am going to guess that those are not SS bearings?
(That would be sad, that's one place on a knife I would want SS)

Unless this knife was neglected, I can't imagine SS with that kind of reaction from what you have done since you got the knife.....

You check out some knife maker supply sites to see if there are any ceramic bearing options you can swap those out for...
That would take care of both lubrication and corrosion issues.
Just depends on the pivot screw size, and OAL on that closed bearing, but it looks fairly generic......
Click to expand...

No idea if ss or not but I am also guessing that they are NOT hehe.

I have searched high and low man, looking for ceramic bearings and race washers. I think I have the race washer thing figured out when I scrape up some extra cash, but I can't find ceramic bearings. I maybe could just go w/ loose bearings, just not caged.
 
razor-edge-knives said:
No idea if ss or not but I am also guessing that they are NOT hehe.

I have searched high and low man, looking for ceramic bearings and race washers. I think I have the race washer thing figured out when I scrape up some extra cash, but I can't find ceramic bearings. I maybe could just go w/ loose bearings, just not caged.
Click to expand...

Patience is running out bro!!
Updates? YT????!!!!

Just kidding man!

I would stay away from loose bearings, they are a PITA when you disassemble for a good clean-up.
I will look around for ceramic bearings for you.

Send you an email if I come across something, now updates please!!
 
JR88FAN said:
Patience is running out bro!!
Updates? YT????!!!!

Just kidding man!

I would stay away from loose bearings, they are a PITA when you disassemble for a good clean-up.
I will look around for ceramic bearings for you.

Send you an email if I come across something, now updates please!!
Click to expand...

Sorry man, been taking video snippets but the last one I wanna get in this one is cutting up cardboard.

Processed some potato's last night! As expected it wedged badly, mostly due to the stock thickness - but a regrind will help a lot . It made them through fine but I had to manhandle it instead of the fine precision of a thin kitchen knife =)

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Here is where you can see where the cuts were skewing off to the right:

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updated the op w/ new video... past few months have been crazy but I'm still working on this project and haven't forgotten!
 
Haven't forgotten about this video series or review! Just been swamped. Got it disassembled and prepped for the grind work! The edge was very thick, around .040" thick at 15 dps so it is WAY overdue for the regrind. Also planning a few other things for this thing.

Now the fun begins!!

So I haven't disassembled this thing in several months, since the last review when I put lithium grease in there. It has functioned very well and I have rinsed it out w/ hot water even getting soap inside somewhat - check it out! No rust at ALL.

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Here it is w/ the new grind marked out... I wanted to visualize. I am really wanting a dual grind, so I can leave it thicker at the tip for prying strength yet thinner on the main edge for very high cutting ability. The reason I am going to take the edge back to the bottom of the choil is because I've noticed that cardboard and stuff gets caught in there when I'm trying to cut it. This will eliminate that issue!

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[video=youtube;KVNd-j7_XHc]https://www.youtube.com/watch?v=KVNd-j7_XHc[/video]

Hopefully I will be updating this within a week w/ some after-grind shots w/ commentary.
 
Got the grind done! Will try to shoot a video soon discussing what I did.

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