Umnumzaan complete take down tool from bhyde...

Death's Head

Death's Head

Joined
Jul 26, 2005
Messages
2,027
Just received this take down tool for the Umnumzaan from bhyde, and as promised, I am posting pics and a review.
The tools is very well made. Much more compact than I expected, and that's a good thing. This take down tool was designed so that you can completely dismantle your Um without any other additional tools. And as expected, this tool does so perfectly. I anticipated that one would need a pair of these tools to remove the pivot screw, but here's a tip. If you unscrew from the male part of the pivot screw, it will make your life a lot easier.
I've used the tool to take down my Um several times already today to test out different lubes, and it has worked perfectly every time. I can't recommend this tool enough for every Um owner or soon to be Um owners.
Now if your interested in this tool, please let bhyde know.
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Nice pics! If I was perhaps more patient, I would have taken some decent pics. But you did a far better job in pictures and your review than I could have dreamed of doing! :thumbup: So, speaking of the tool, can you imagine needing more than one to disassemble the Umnum?? The 4 holes were added in the prototypes but in the production version, I should add that they will only be two and they will not be thru holes and the same is true for the center hole.


Bill
 
When putting it back together does one have to "adjust" the pivot screw like on say a Benchmade or Strider? Do you have to play the tighten, test, adjust, test, etc. game? Or is the pivot screw machined to the right length so when you tighten it down the is no extra tension on the pivot/movement and no blade play?
 
bhyde said:
Nice pics! If I was perhaps more patient, I would have taken some decent pics. But you did a far better job in pictures and your review than I could have dreamed of doing! :thumbup: So, speaking of the tool, can you imagine needing more than one to disassemble the Umnum?? The 4 holes were added in the prototypes but in the production version, I should add that they will only be two and they will not be thru holes and the same is true for the center hole.


Bill
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Thanks for the compliments Bill. I was speaking to a friend about the tool. He has an Um as well. And he was asking about needing two. I told him that you DON'T need two. Only ONE. If you try and open the pivot screw from the female end, it is difficult because of the friction between the screw and the Ti slab. But if you use the tool on the mail part of the pivot screw, it is quite easy to unscrew because as stated earlier, the friction of the female portion of the pivot screw on the Ti slab creates enough force to unscew the pivot.
And also, I see no benefit at all having four prongs over two. Two worked just fine. No slipping or anything.

Xcel said:
When putting it back together does one have to "adjust" the pivot screw like on say a Benchmade or Strider? Do you have to play the tighten, test, adjust, test, etc. game? Or is the pivot screw machined to the right length so when you tighten it down the is no extra tension on the pivot/movement and no blade play?
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Yes, you can say that the Um has a pivot of an ordinary folder. No bushing inside. But here's the thing. Mr. Reeve's designed the Um to be as simple as possible. More moving parts means more friction between those parts. That's why he ended up the present Um design. But with that being said, the Um has no blade play, even if you loosen the the pivot screw significantly. It's because the pivot screw is so large, and it fits so tightly into the Ti slab, there not enough allowance for the blade to move back horizontally.
 
Death's Head said:
Yes, you can say that the Um has a pivot of an ordinary folder. No bushing inside. But here's the thing. Mr. Reeve's designed the Um to be as simple as possible. More moving parts means more friction between those parts. That's why he ended up the present Um design. But with that being said, the Um has no blade play, even if you loosen the the pivot screw significantly. It's because the pivot screw is so large, and it fits so tightly into the Ti slab, there not enough allowance for the blade to move back horizontally.
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Basically the mechanics of the blade/pivot stops blade play because of the sheer size. How does this compare to Striders design? Why the problems? I ask because I don't own one. Is it because of the quality of the machine work.

Plus, does the pivot screw loosen on its own after use/time?

*I kind of hijacked your thread, sorry about that.*
 
I really don't think the pivot would loosen on it's own accord, although it is a remote possibility. I believe Chris had done extensive testing on this to make sure, but only he would know. I personally would hesitate commenting on other makers knives as it really serves no good purpose and doesn't help the Reeve community other than learning from others good bad or indifferent.


Bill
 
I am posting here basically to let everyone know I am getting more of these made, but it will take a week or two to get them in. I will post these when I get them in the main sales forums to leave these free for Reeve discussions more along the line of his products and why we love them.

Bill
 
got mine yesterday- boy this is one sweet little tool. thanks again bill.. unfortunately I can't try it yet because my umnumzaan is with Tom at Krein Knives getting one of his famous scary sharp edges put on it :)
 
love4steel said:
got mine yesterday- boy this is one sweet little tool. thanks again bill.. unfortunately I can't try it yet because my umnumzaan is with Tom at Krein Knives getting one of his famous scary sharp edges put on it :)
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Post pics of that! I've been debating doing that with mine as well.
 
bhyde said:
I really don't think the pivot would loosen on it's own accord, although it is a remote possibility. I believe Chris had done extensive testing on this to make sure, but only he would know. I personally would hesitate commenting on other makers knives as it really serves no good purpose and doesn't help the Reeve community other than learning from others good bad or indifferent.

Bill
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I hope/didn't want my questioning to go into the argument of manufactures/designs. I feel both designs are great, both have pros and cons, I just don't want to be readjusting my knife every couple of days. Thanks for the information.
 
love4steel said:
got mine yesterday- boy this is one sweet little tool. thanks again bill.. unfortunately I can't try it yet because my umnumzaan is with Tom at Krein Knives getting one of his famous scary sharp edges put on it :)
Click to expand...

I would LOVE to see that I've been thinking of sending mine in too
 
Wow, hey bhyde, Good job. I've been thinking of selling two of my knives off to get an umnumzaan and if I do I would really like to get one of those tools. If you could email or pm me about it I would be really grateful, great job, J.
 
Just in case anyone is interested in these I have them up in the exchange forums. (gadgets/gear)

Thanks!

Bill
 
Don't wish to make this thread spam for Bill's tool, but I received one today and it is a fine tool.
Perfect for a fine knife.


Tom
 
Thanks Tom! It has been awhile since I have seen this thread-


Bill
 
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