Dmt

DMT uses Mono-Crystaline diamonds that bond with the steel better and last much longer than Poly-Crystalline diamonds that most other companies use. The poly diamonds will break apart before coming loose from the metal that they are bonded to. In other words, the DMT will last much longer, and retaing their cutting ability longer. My fine rod grain leaves a grind similar to that of a medium-coarse grain stone though.

Mike

Edited to add: Ok I should have looked at the post better and realized that both were products of DMT, so disregard the whole mono v/s poly diamond junk, unless you are comparing the DMT to other brands. It appears that the dia-sharp has diamonds over the entire cutting surface where the usual DMT stones have holes with no diamonds. This link should answer your question.

HTH,

Mike
 
Right, now which is better? Does one last longer or put a finer edge on or what?:confused: And who’s a good internet dealer for these things? I’ve been looking at SMKW but they don’t carry the plastic based benchstones...
 
I haven't tried the dia-sharp, so I cannot give an opinion. I can say that the "holes" in the regular DMT models are supposed to allow the metal shavings a place to "float" withougt messing up your edge and clogging the diamonds. The dia-sharp doesn't have those holes. The regular DMTs might be a bit easier to use because they are elevated a bit with their base, which aids in getting the blade flat without the handle getting in the way. You can buy some here.

HTH,

Mike
 
I think DMT's reason for making the dia-sharp line, from what I can tell by their website, is to bring diamond hones to a different price point, making them more affordable. With this, you don't get all the "bells and whistles" as the original line, but you do get the "better" mono-crystalline diamonds at a lower price, along with greater portability. Although, if portability is an issue, you can get their pocket models which fold up, and have two different grits for field repair/sharpening. Again, the original bench models seem to be better quality, and better suited for frequent use with bigger knives. Again, my main concern is that the flat, thin profile will make it a bit difficult to use the dia-sharp model. YMMV

Mike
 
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