Sandrin TCK Tungsten Carbide Knife - Does Anyone Have One?

Having looked at the link now, I'm guessing it's got to be a low percentage of TC as they say it's "flexible" so there's got to be a good percentage of other stuff in the sinter. My main worry would be dropping the knife and having the blade snap right off.
 
eKretz said:
I have, many times over many years. And yes it takes longer than steel. How much longer depends on what steel you're comparing to and the surface area difference between the two. High surface area with tungsten carbide and you'll wish somebody else was doing the sharpening. But a high carbide steel can be the same. Also the "freshness" of the diamond plate will make a huge difference. Old diamond plates will be considerably slower going than brand new ones.

How prone to chipping a TC blade will be is going to depend on the sinter mix and what's in it.
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E eKretz my friend , we are talking of sharpening half milimetar surface here .....WITH diamond :) MOST sharpening system I see here are clumsy shaking device.It s like you try to cut with hand saw for wood some board while board is fastened with rubber band to the table.......that s way they need more time ....
 
No, not looking at that knife. Looks like a considerably large surface area flat grind to me. And there's no belly to the blade. You won't be sharpening that one in a few minutes' time - unless you heavily alter the grind.
 
Lapedog said:
I’m not the only person asking abiut this. Every time these knives get brought up one of the first things someone asks about is the difficulty sharpening it.
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It s two things .....They don t know to sharpen or they just made point how hard blade they have :D Diamond would sharpen any steel with no effort ! For diamond don t make difference how much carbide they cut .......it s like they cut wood ......
 
eKretz said:
No, not looking at that knife. Looks like a considerably large surface area flat grind to me. And there's no belly to the blade. You won't be sharpening that one in a few minutes' time - unless you heavily alter the grind.
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With half milimetar I mean on blade from steel .Don t tell me that there would be noticeable difference in sharpening 52100 or HSS steel if we use diamond of course ...........
 
rogatsby said:
Geez, I ask a question about a knife and people get into a big argument about how hard tungsten carbide is to sharpen. And none of these people own this knife or any tungsten carbide knife.
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Are you sure about that ? I have half mile of tungsten carbide blades :D
 
Natlek said:
With half milimetar I mean on blade from steel .Don t tell me that there would be noticeable difference in sharpening 52100 or HSS steel if we use diamond of course ...........
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I think yes, there is a noticeable difference, but not a huge difference. On a tiny bevel I would agree it would probably be very difficult to notice.
 
rogatsby said:
Geez, I ask a question about a knife and people get into a big argument about how hard tungsten carbide is to sharpen. And none of these people own this knife or any tungsten carbide knife.
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You do realize you're on a "discussion" forum/board and not talking or texting on your phone to your B.F.F., right? People discuss things, and discussions take turns. As far as I have seen, nobody is arguing, merely discussing or possibly debating. Arguing usually entails anger.

And yes, I have sharpened tungsten carbide knives, tools and all sorts of other iterations.
 
eKretz said:
You do realize you're on a "discussion" forum/board and not talking or texting on your phone to your B.F.F., right? People discuss things, and discussions take turns. As far as I have seen, nobody is arguing, merely discussing or possibly debating. Arguing usually entails anger.
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Why the hostility? I'm just pointing out an observation. People are free to discuss as they wish. I never said they should not or could not do so. And what is the point of your post? By the way, my post was made in a bit of amusement, not as denigration or criticism.
 
Blues Bender said:
It says 71 HRC right on their website, and it also says the blade is flexible.
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A hardness test won't always tell the whole story. Most hardness tests are checking for indentation, which is useful in general terms but doesn't really reflect hard carbide particles' true hardness. Think of it this way - put a bunch of diamonds into some modeling clay. You can EASILY push the clay, but the hardness of the diamond wouldn't be reflected well in an indentation test.
 
rogatsby said:
Why the hostility? I'm just pointing out an observation. People are free to discuss as they wish. I never said they should not or could not do so. And what is the point of your post? By the way, my post was made in a bit of amusement, not as denigration or criticism.
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I am not being hostile, simply asking a question. Your expectations seem a little out of place in such an environment. Your post sure read as a complaint to me. When I read it I thought "Do you not want a discussion to occur? I suppose we could all just refrain from supplying information if that would suit you better?" Pretty much all of what has been discussed here has been relevant to the subject.
 
eKretz said:
A hardness test won't always tell the whole story. Most hardness tests are checking for indentation, which is useful in general terms but doesn't really reflect hard carbide particles' true hardness. Think of it this way - put a bunch of diamonds into some modeling clay. You can EASILY push the clay, but the hardness of the diamond wouldn't be reflected well in an indentation test.
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And your point is what?
 
eKretz said:
I am not being hostile, simply asking a question. Your expectations seem a little out of place in such an environment. Your post sure read as a complaint to me. When I read it I thought "Do you not want a discussion to occur? I suppose we could all just refrain from supplying information if that would suit you better?" Pretty much all of what has been discussed here has been relevant to the subject.
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Look, you're the one who started the hostilities. I have been following this thread and I just made a lighthearted comment about how the discussion went towards steel hardness and sharpening. But no hard feelings, and if my lightheartedness did not come through, I apologize. But you are being quite aggressive in your comments. Relax bro.
 
rogatsby said:
Look, you're the one who started the hostilities. I have been following this thread and I just made a lighthearted comment about how the discussion went towards steel hardness and sharpening. But no hard feelings, and if my lightheartedness did not come through, I apologize. But you are being quite aggressive in your comments. Relax bro.
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Again, there ARE no hostilities. I'm not entirely sure what you're getting flustered over.
 
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