• Precision flat, two-diamond surfaced sharpener guaranteed to provide consistent, even sharpening every time

• Two sided: Coarse diamond to transform a dull edge and Fine diamond for a razor sharp edge

• Sharpens knives faster than conventional stones with DMT's monocrystalline diamond surface

• No oil is needed-sharpen dry or with water

• Durable construction will provide years of consistent performance and reliable service

This 10" double-sided 600/325 fine/coarse grit stone will sharpen, hone and lap, all types of woodworking tools including knives, chisels, plane blades, gouges, and carbide router bits. The stone measures 10" x 4". Use it dry or with water. It includes a non-skid mat to prevent slipping on work surface.

I purchased this diamond stone to true the water stones and it does a great job, rendering them flat with just a few strokes. The added bonus was that I also used the diamond stone for the first stage of regrinding the chisels; it was much faster than the water stone and stayed flat during the process.

Unless you have a method of securing the diamond stone to your bench, get the available holder, its definitely worth the money.

I did notice a bit of rust forming on the steel substrate after leaving it wet, so I now dry it off after each use.

16 of 17 found the following review helpful:


Super flat and super fast  Mar 28, 2003
A super value sharpener for all your edges no matter what they are made of. Carbide, ceramic, tool steel, high speed steel all are sharpened very quickly to a very keen edge. The double sided design is a great space saver and the whetstone size is great for large plane iron flattening / sharpening. This premium value seems to be found in all the rest of the DMT product line too.

8 of 8 found the following review helpful:


Finally a quality product that does what it's supposed to...  Jul 20, 2006 By David Thomas
I've tried several different sharpening systems, and sharpeners over the course of my lifetime, and without a doubt, the DMT DuoSharp is the best I've personally used. The Stone is very effective having both coarse and fine sides to it, and it is quality built. I will have this stone for my lifetime, and my son will probably inherit it after I'm gone.

If you're looking for a stone to take a damaged or totally unsharpened edge to a razor edge, then this is the one you need. If a more polished edge is what you're after then the Fine, Extra Fine is the one for you. With these two stones, you can sharpen and hone then polish anything from a pocket knife to a hatchet and then on to a Samarai Sword. I'm currently working on putting a razor sharp edge on a Hattori Hanzo replica sword my son owns.

This is a pricey stone, but remember... you get what you pay for!

I'd buy it all over again!


Fantastic  Sep 11, 2011 By Vijay mirpuria
Dmt sharpening stone is the best for all knives. It takes less than half of the time to Sharpen knives than other stones. I m loving it... But the only thing I can't understand is he colors black and blue... It's not easy .. But it is brilliant stone to have... Now I hv sharp knives all the time...


Nice Stone  May 17, 2010 By Willis Dozier Lester "WD"
Really like it. Got a blue/red stone, medium and fine I beleive, does a real nice job. Fast too. Really put an edge on a benchmade I was struggling with. Ordered a smaller very fine for finishing. WD

See all 11 customer reviews on Amazon.com