manix blade strength

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rctk1

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Mar 5, 2005
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just curious.....how strong is the tip for prying? i know that knives are not meant to be used as a crow bars but i just want to know what the limitations of the blade are. I saw cold steels videos depicting the blades being abused and they seem to keep the point in very good shape can the manix handle that type of abuse?
 
If you want to pry at all, why use the tip, the obviously weakest point? Can't you get a bit more of the blade into the work? If not, just decide the prying is worth more than the knife. No one is going to give you a quantifiable answer, so you'll just keep doing it until ...

A prybaby on your key ring might be a better idea, or a multitool.

Oh, by the way, if you believe what you see on the Cold Steel videos, -- look again, more carefully.
 
I'm just curious, but do you have to pry on a daily basis? And what do you pry with a folder?
 
Yup, use the proper tool. A quality knife won't let you down if you use it for its intended purpose, cutting.
 
If you read Cliff Stamp's review of the Chinook you find his comments on S30V regarding prying.

It isn't the best choice for light prying tasks. Not that there is one but S3OV is not likely to take much and especially at the tip.
 
i dont think that i will be prying with the knife, when i saw the Coldsteels video, i saw some of their folders being used to puncture car doors and tear open walls, and the tips stayed pretty much in tact. I wanted to know how much can the blade take in the event of a life or death situation.
 
Not meaning to get off the subject, but I've found that the bottle opener on my SAK makes a handy little light pry bar for opening up crawl spaces or the hidden control panel on a window AC unit or something like that. I'd like to try out one of those pry-babies, and I don't mean to offend anyone, but I just can't see me spending that much for one.
 
like trying to use the knife as an emergency can opener, you would normally try to cut an X shape across the top of the can then use the knife to open the petal like shape metal after. something in the lines of that kind of prying, nothing heavy duty that would require a screw driver or a prybar. Is the knife capable?
 
rctk1 said:
like trying to use the knife as an emergency can opener, you would normally try to cut an X shape across the top of the can then use the knife to open the petal like shape metal after.
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A manix will do this easily.
 
rctk1 said:
like trying to use the knife as an emergency can opener, you would normally try to cut an X shape across the top of the can then use the knife to open the petal like shape metal after. something in the lines of that kind of prying, nothing heavy duty that would require a screw driver or a prybar. Is the knife capable?
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I assume you would use steady pressure, puncture the top, then use the back of the blade -- not the tip -- to pry open the "petals." I have done this with an S30V Military. The Manix is thicker. Not that big a challenge.
 
A Manix will eat that kind of task up. Its a pretty robust folder. probably as robust as you can get without having something either too big or heavy that would be a pain to EDC. IMHO the Manix is about as big as you can go for EDC.
 
That won't bother the blade :

http://www.physics.mun.ca/~sstamp/images/can.jpg

However the edge on my Manix was ground very fine 10-12 degrees per side and thus rolled on the can, and the tip slightly impacted, less than half a mm.

If you want to cut metals and such go up to at least the 15 degree per side settings on th Sharpmaker, and the 20's would be a more sensible bet just for the secondary bevel of course.

That isn't much prying though, even an Opinel would do that.

-Cliff
 
I like the question as it seems, the tip is the weakest part of the knife on one hand, but the most abused part on the other.

I always look for a strong tip but it shouldn´t be tanto. But, as the topic starter asks, what do i have to expect on strength and what is too much?

If there are some more reports of tip strength, i would gladly listen.
 
I am genarally interested in much more, but tip strength or "i pryed open this and that with that knife" is enough.

I started the tip breakage topic over a year ago and wasn´t that much sucsessful. I alsways read what people do with their knifes, expecially if the knife was thick and expensive. The quarter with the cheaper knifes always stays calm.

I would like to come to an opinion what is an aveage useage of tips and what is the average expectation.

As a member of a german Paramilitary passaround i compared the para tip to the BM 520 and noticed, that the way from tip to total stock thickness is shorter (in a way a ballistic movement) compared to the para. That proofs, that the 520 tip must be stronger, if everything else is ok.

But it doesn´t say, what it has to take.

A sample of experience might help.

What knife, what steel, what was pryied, was it sucsessfull, was that expected or was it surprising. What did the blade during prying, did it bend? Was the prying stoped because the blade bend?
 
Blop said:
as it seems, the tip is the weakest part of the knife on one hand, but the most abused part on the other.
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I think that there are two ways of looking at this. For some, the tip may be the most abused part of a blade. For others, the tip may be the most used part of a blade. I fall into the latter category. I'm always looking for a thin pointy tip, just because I want the most used part of the blade to be the best cutting part of the blade.
 
Buzzbait said:
I want the most used part of the blade to be the best cutting part of the blade.
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What's the matter with you? Do you expect a knife to be a cutting tool? Get out there and chop rocks like you're supposed to!

:D
 
Blop said:
I started the tip breakage topic over a year ago and wasn´t that much sucsessful.
Click to expand...
What would be nice to see is a list of things which are gradually more stressful that you could do and thus give a semi-decent tip strength rank which would be fairly meaningful to a user aside from a quantified vice break.

Buzzbait said:
I think that there are two ways of looking at this. For some, the tip may be the most abused part of a blade. For others, the tip may be the most used part of a blade.
Click to expand...
No simply that any tip is a compromise of strength and penetration ability and different people want the point to split different amounts.

If it was as simple as you described all your knife points would be as thin as the point on the Spyderco Catcheman which is so thin that if you press it into a phonebook you can break it off.

Do you really think that it is that out of line for someone to want more strength. Of course not. Thus it isn't unreasonable for everyone to set their own standards.

-Cliff
 
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