After all too many years of hand sharpening blades...

[nozh2002]

I think that the fact that i have now have two DMT extra coarse hones that are now glass smooth (even after cleaning) is testament that they can wear out.

It was pocket model with which you re-profile your SOG Tech Bowie for 9 hours - am I understand this correctly? Can you post the pictures of your sharpeners?

Thanks, Vassili.

 

[Bushman5]

will try to get some pics , gotta find a camera to borrow. Yes, the 6" pocket models.

I suspect a bench model would present zero issues with wear (when reprofiling) comapred to using the 6" pocket model (i pretty much killed them i think.... . When i use my new DMT pocket model for FIELD sharpening, there was zero issues .

 

[nozh2002]

will try to get some pics , gotta find a camera to borrow. Yes, the 6" pocket models.

I suspect a bench model would present zero issues with wear (when reprofiling) comapred to using the 6" pocket model (i pretty much killed them i think.... . When i use my new DMT pocket model for FIELD sharpening, there was zero issues .

The one I am talking about is 2007 year model. When did you get yours?

Thanks, Vassili.

 

[Frank Hillary]

Hi,

To see if DMT is beter had a look around on the net and did make a search in google for DMT+diamond+wear and got many hits of people complaining of wear to fast. Intersting thing is that many were very hapy. Also everybody agrees that DMT is beter than other brands. This says to me that quality or way of using may vary and DMTis best brand.

Someting else:

Lansky Diamond 4"x1/2"=2sqinch
EdgePro Diamond 6"x1" =6sqinch
6"x2" stone =12sqinch
8"x3" stone = 24sqinch
11.5"x2.5" stone=28.75sqinch

This says that on 2.5" wide stone presure is reduced 5 times against Lansky stone and 2.5 times against EdgePro

Also says that 11.5"x2.5" stone has 14 times more area than Lansky, nerly 5 times more area than EdgePro. This means it lasts 5-14 times more. 10 knifes on EdgePro then 50 knifes on large stone. This may explain why Vasili has good expirience and others complain.

Best people to ask about sharpening IMHO are not knife owners but wodworkers and most use waterstones and use diamomnd only for straitening water stones. Many woodworkers tryed diamonds for sharpening and complain of fast wear. See internet. Also after short time waterstones cut fater than diamond. This is my expirience and also that of many others. Again see internet.

But if you like very hard steels like I do them diamonds are the best there is for beveling Also water stone cant be used with Vasilis sharpening jig because slury will flow of so must use diamond

Sory for long post

Regards
Frank

 

[nozh2002]

Hi,

To see if DMT is beter had a look around on the net and did make a search in google for DMT+diamond+wear and got many hits of people complaining of wear to fast.

I did same search and did not find too much - you should provide direct links.

Intersting thing is that many were very hapy. Also everybody agrees that DMT is beter than other brands. This says to me that quality or way of using may vary and DMTis best brand.


Someting else:

Lansky Diamond 4"x1/2"=2sqinch
EdgePro Diamond 6"x1" =6sqinch
6"x2" stone =12sqinch
8"x3" stone = 24sqinch
11.5"x2.5" stone=28.75sqinch

This says that on 2.5" wide stone presure is reduced 5 times against Lansky stone and 2.5 times against EdgePro

Also says that 11.5"x2.5" stone has 14 times more area than Lansky, nerly 5 times more area than EdgePro. This means it lasts 5-14 times more. 10 knifes on EdgePro then 50 knifes on large stone. This may explain why Vasili has good expirience and others complain.

There are no other who complain - at least you did not provide any but first three which is hard to consider as a solid proves.

Best people to ask about sharpening IMHO are not knife owners but wodworkers and most use waterstones and use diamomnd only for straitening water stones. Many woodworkers tryed diamonds for sharpening and complain of fast wear. See internet. Also after short time waterstones cut fater than diamond. This is my expirience and also that of many others. Again see internet.

"See internet" - is not enough. We all here provide you first hand experience and you sending us to the Internet?

But if you like very hard steels like I do them diamonds are the best there is for beveling Also water stone cant be used with Vasilis sharpening jig because slury will flow of so must use diamond

Sory for long post

Regards
Frank

It is hard to consider this as a prove of you statement. I do not know why you are so desperate to make us to believe that diamonds are wearing off and only suitable for hard steel, while we all know that it is not true, because we all have this tools and do a lot of sharpening ourself. No one here support this, but you and you do not have first hand experience - you can not even provide links to cases in the Internet you mentioned!

Best people who know how to sharpen knives not the people who sharpen chisels, but people who actually sharpen knives. Sorry if it sounds too obvious. And I am sharpening many knives, many steels as well as others.

I can not say about chisels or other woodworking tool - this is not my expertize, but for knives diamonds are best solution - and they last for long and works on any steel - soft and hard. And many members told you this here having first hand experience.

Thanks, Vassili.

 

[Frank Hillary]

Vasili,

Unfortunately I have to work so I cant spend to much time looking at internet. I provided links in this terad and you? Your limited expirience only with 3 or 4 stones. This tread is on opinions becuase there is litle published on performance of diamond stones. The only things we we have is what is out in the forums. Intersting thing is that wear of diamond stones is frequent topic on forums. Why?Smoke=Fire, maybe?

You say that in your expierience diamonds are best. OK

I say not always. OK? Ihave 20 yers expirience as toolmaker and know something of abrasives and sharpening. Not everything but something. If you can prove diamonds are best then I will change me mind. But so far no facts only opinions. But if diamonds are best then why so many woodworkers spend so much money on waterstones? And they try diamonds. See last tread

I have many contacts in abrasive industry and I know what the sales reps are saying. Sory but there opinion to me is more solid.

I am surprised that you did not mention the great advantage of diamond stones in some uses which yas not been talked about in this tread. It is flatnes. This is why it is so popular for dresing ceramics and water stones. Now I ask Apart from your present interest in sharpening knives how long have you been using diamonds and abrasives? I try when they first come out many years ago. I am not saying they are bad or good. They are tool and have uses. Same with files and hamers etc. Not one tool is perfect of good for everything.

I give you 3 interesting treads. Plenty more out there.

http://groups.google.com/group/rec....711c3f15bfa6?hl=en&lnk=st&q=#0d86711c3f15bfa6

http://groups.google.com/group/rec....743ef12a3716?hl=en&lnk=st&q=#acb2743ef12a3716

And this very long tread which is like book on sharpening

http://www.woodworkforums.com/showthread.php?t=22108



Regards
Frank

 

[nozh2002]

I have many contacts in abrasive industry and I know what the sales reps are saying. Sory but there opinion to me is more solid.

Well I do not have any contacts in "abrasive industry" - may be this is a problem? I am not listening to sales rep I have my own first hand independent experience and opinion. For example - that Edge Pro link you provided first where it was info that DMT will wear out after 10 knives, kind of misleading on my opinion and does not comply with my first hand experience as well as many members here.

Also I am talking about current tools at 2007-2008, not outdated 2002 links you provided - may be this is another problem?

I am just recently learn how to sharpen knife to the extent when I can whittle hair. Here the prove (again first hand):

http://www.youtube.com/watch?v=aQPwHu4lxsQ

I think I am kind of have some idea what sharpening is, even I learn it just last summer, and I can recognize that diamond last for long and sharpen easy any kind of steel.

Thanks, Vassili.

 

[Frank Hillary]

Vasili

Also I am talking about current tools at 2007-2008, not outdated 2002 links you provided - may be this is another problem?
.

Aha - So they have problems one time? They fix this year? How you know? On 3 stones? OK I say to evrybody to wait another year or two and see if reports change.

Come Vasily, lets stop arguing. If you come to Australia I buy you beer and we friends. Anyway I like diamonds too. I tell you before.

Regards
Frank

 

[nozh2002]

If you come to Australia I buy you beer and we friends.

It is hard to arguing this! Do you you have any good vodka down under?

Thanks, Vassili.

 

[Frank Hillary]

Vasili

It is hard to arguing this! Do you you have any good vodka down under?

For sure. :thumbup:

Regards
Frank

 

[Bushman5]

The one I am talking about is 2007 year model. When did you get yours?

Thanks, Vassili.

middle of December, 2007

 

[nozh2002]

middle of December, 2007

will try to get some pics , gotta find a camera to borrow. Yes, the 6" pocket models.

I suspect a bench model would present zero issues with wear (when reprofiling) comapred to using the 6" pocket model (i pretty much killed them i think.... . When i use my new DMT pocket model for FIELD sharpening, there was zero issues .

Can you clarify what is it - 6" DMT pocket sharpener? I try to google it, but it all pocket sharpeners are smaller then 6"?

If it is 6" by 2" - which is non pocket - it should be able to reprofile anything even for 9 hours. Can you at least give the link to this product page on manufacturer site -

http://www.dmtsharp.com

Thanks, Vassili.