Diamond Machining Technology (DMT) Diafold Serrated Diamond Knife Sharpener, Extra Fine (FSKE)

I really like this diamond file for sharpening the inside of my woodcarving gouges... works on even 2 mm and v-tool gouges to take off the inside burr from sharpening. Makes life easier and tools sharper!

I have multiple DMT products, and all are uniformly great, from 120 grit 8" stones to 8000 grit 8" stones.This conical sharpener works well for serated knives, as well as other tasks that might need a round sharpening or "filing". The handles fold around it in storage, and fold in the other direction to expose the stone. The handle is easy to hold when using.For sharpening knives, I prefer a slight stream of water, to keep the stone clean. I also keep some DMT flat "files" for touching up kitchen knives.I have never had less than perfection from DMT.

Solution for sharpening your serrated knives. Works great. High-quality construction. Highly recommended

The grit on this sharpener is extremely fine. It is almost non-existent. If you're planing on really sharpening or reforming edges, this is not the proper grit. I would recommend the fine 600 grit, or even the coarse 325 grit for general sharpening. This 1200 grit is more for polishing edges after sharpening with a more aggressive grit. Personally, I find this sharpener useless for sharpening serrated edges, but it will put a fine polished edge on an already sharpened blade. It makes a nice addition to a full set of DMT sharpeners, but if you're only going to buy one for all purpose use, I recommend you get the fine 600 grit diafold. The quality of the product is excellent, and the design is great.

We had picked this up to sharpen some serrated knives that just weren't cutting it anymore (ha!). We were pleased to find that the taper on this sharpener allowed us to dress multiple sized serrations, and it brought the blades to a razor sharp level. There had been chips in the serrations, and those have been refiled and sharpened to the point that you would never know they were an issue. This thing really does its job well.An excellent product that I would purchase again!

I like using this to polish and remove burrs from small mechanical parts. You can also use for sharpening serrated knives. I did snap off the handle but the DMT company stepped up and made it right. You just cannot lean on it too hard while using. Much much better than a stone and you can use it as a very precision file so it's versatile. Highly recommended.

I have been using exclusively DMT products for as long as I've been sharpening anything soon after discovering them. This product doesn't disappoint, well constructed. Although in honesty I had to return one which broke within 15 minutes which the return process was really nice and easy. The second one I got forgives that because I know DMT makes an above superior product and it is reminiscent of that quality. Obviously speaking to that the sharpening and ease of sharpening is remarkable. I highly recommend this product to anyone with a serrated blade.

I already had the Fine grit version of this sharpener I bought in a hardware store awhile back. I was excited to get the Extra-Fine version to put a more polished, refined edge on some serrated knives. The sharpener I got, though labeled and color coded as such, is NOT Extra-Fine. It is rough, and very uneven. There are large areas on the sharpener that are rougher that others, and even the smoothest areas are much rougher than my old sharpener which is only “Fine”. My old sharpener was not only more Fine, but also perfectly uniform.Perhaps a course sharpener was attached to a green handle by mistake and packaged incorrectly. Or maybe DMT has some quality control issues. Either way, no one could put a polished, refined edge on anything with this sharpener.It’s going back.