Diamond Machining Technology (DMT) W250CX-WB DuoSharp Double-Sided Diamond Sharpening Stone Bench With Base, Fine/Extra Fine, 10 Inch

Over the last 65 years I have purchased MANY brands of sharpening stones. I have been a collector of knives my entire life and keeping them sharp is an integral part of this journey. The "good-bad-ugly" of sharpening devices, tools, stones, gimmicks, cons, etc. have all crossed my bench and honed my steel. DMT became my choice for diamond flat stones. They last longer than any other brand I have used. I currently own 8 DMT products in both duo-fold and FLAT. This purchase was my LONG sought after 10 x 3 in fine and extra fine. Is a dream to use, so much area and it cuts fast. I recommend this stone based on my many years of serious use of their products.

I fellow Amazon reviewer mentioned if you can afford it, get the larger 10"×4" size. That was good advice. Does a nice job sharpening. I whittle, so I need to strop afterwards. Expensive, but better quality than cheaper ones.

Been using Japanese Whetstones for well over 25 years from Shaptons, kings, Gesshin's, Nubatamas, to J-nats. I've used the course Dia sharp for flattening for as long as I can remember except when I use the Shapton flattener. Needed something for the down and dirty quick turn around since I sharpen in large volumes and not every knife needs to be 8k or up. This is quick, clean and leaves a nice toothy edge after stropping on plain uncoated leather, basically no substrate applied. Just the stone and strop to make her work well. Love the holder also. Great investment for a professional sharpener, especially when there's 20 or morning in line that have to go. Would buy again. We will be getting the 8k also for the picky customers.

This sharpening system is amazing. I got the red/green = fine/super fine combo to start a new hobby and get my kitchen knives (which I've always been obsessed with) back to razor sharp. This stone may not seem ideal for the novice sharpener since it is so expensive, but really since the diamond coating and the "stone" doesn't erode then you don't get the pits that most people have to keep an eye on and constantly maintain. The grits that I got were perfect. While the red/ fine side is agressive enough to remake the edge quickly it still isn't coarse enough to gouge the knife/chisel/ whatever you dang well please to sharpen. Haha it's beautiful and I'm glad I sprung for it. The blade guide I ordered with it, because I'm a novice and was worried, says it's going to take a month and a half to deliver... so... if you get that companion to the be prepared for that. But as of right now I don't think it's even needed. Thanks!

Works great as expected.

I use these mostly for sharpening woodworking tools, but I also use them for any other sharpening job that surfaces. These are expensive diamond plates, but I believe they are worth it. I didn't buy mine from Amazon because I found a great Black Friday deal at another web site, I just couldn't pass up. Sorry Amazon! I buy almost everything from Amazon if possible. I bought the 10" kit that comes with 2 DuoSharp (dual sided) diamond plates and one ABS plastic base. I actually like the base. It is simple but it works. I will order a second one so I don't have to keep switching out the diamond plates. One diamond plate is labeled Extra Course/Course and the other is labeled Fine/Extra Fine (more about that later). These plates work really well, they cut fast and you don't have to worry about wearing them down. Like many people, when I first looked at them, I thought, "How can those work with those holes in the plates?" They actually work really well, thank-you! As you grind across the plate, some of the slurry goes into the holes to keep the plate clear, this is one of the reasons why the plates cut so fast and require very little pressure. I also noticed that the hole pattern gives me auditory and tactile feedback. When I first start sharpening, I hear and feel the zip, zip, zip, as the blade moves across the plate. As the blade sharpens, the zip, zip, zip changes to a more gentle shush, shush, shush indicating the blade is getting sharper. Did I say they work great? Anyway, so why only 4 stars and not 5? Well, for one simple reason - Why is it so difficult for DMT to label their products so a person can quickly identify them and compare them to other whetstones? DMT feels the need to use a color coded system, why? OK, over time I will memorize the colors, but is it asking too much for DMT to mold the words "Fine" or "Course" into the substrate? Instead they put a colored dot on the plate. On their smaller plates, the entire plate substrate is colored. Why did DMT not do this on the larger plates? I don't have the youngest eyes, but I can't tell the difference between the black and the blue dot in less than bright light. How about a great big "FINE" or "EXTRA FINE" in neon letters! I opted to use a sharpie to mark mine for easier identification (see photo 2). When I was shopping for a sharpening solution, I found it very difficult (and still do) to compare these diamond plates to other whetstones. What does DMT mean when they say Extra Course, Course, Fine, Extra Fine, and Extra Extra Fine? Does it create the same mental image of what these terms mean when talking about sandpaper? Do all whetstones use comparable terminology? It turns out that the answer is a bit complicated and if I had to give a one word answer it would be - Nope! For example, if you look at the information provided by DMT, a Fine plate is described to have a 600 mesh/25 micron particle size. OK, how does that compare to other whetstones or abrasives? What I found out is that it isn't really all that easy to compare one abrasive to another because it depends not only on the size of the grit particles but also on the uniformity of the particle sizes, how many particles are on the substrate, and how evenly the particles are distributed across the substrate. So anyway, I recommend using the Mesh value and the Micron size rating to give you a relative comparison with other whetstones. Heck, I don't even know what "Mesh" means, but the Fine diamond plate is rated as "600 mesh/25 microns". Looking at other whetstones (Shapton ceramic stones), it appears that a 25 micron stone is probably around 600 grit. OK so does "Mesh" mean the same thing as "Grit"? Not exactly! What DMT calls their "Extra Extra Fine" plate at "8000 mesh/3 microns" looks to be about the same particle size as a 6500 grit whetstone. In my mind 6500 grit does not qualify as Extra Extra Fine. For another example, a Shapton 8000 grit ceramic stone has an abrasive particle size of 1.84 microns which is about one-half the size of the 8000 mesh/Extra Extra Fine DMT plate. Getting even finer, the Shapton 16000 grit ceramic stone has a particle size of .92 microns and the 30000 grit Shapton has a particle size of .49 microns. Now that is Extra Extra fine! Don't get me wrong, I am not blaming DMT. There doesn't appear to be a uniform industry rating system for these products which makes it hard to compare adequately. I love these diamond plates! They are expensive, but they will last a very long time and give predictable results every time with very little maintenance. The product information doesn't recommend doing this, but I use these diamond plates to lap my other whetstones including the Shapton 16000. I would give these diamond plates 4.5 stars if I could, and if DMT would come up with a better labeling system and a better explanation of how to compare these diamond plates to other sharpening options, I would definitely rate them a 5+. Photo 1: Size of the plates about 10.5 x 4 - Get the big ones if budget will allow. Photo 2: I added the letter designation to help me remember the color code Photo 3: Relative size compared to an 8" Shapton ceramic whetstone. Now, that is how to label a whetstone! Pros: Cuts fast, flat, little maintenance, joy to use, great value Cons: Expensive, labeling is poor, difficult to compare to other products. I strongly recommend these products.

Big, flat, consistent, and effective. I've sharpened knives on stones, steel, ceramic, with and without guides, for years. Same goes for axes. I like my axes razor sharp and my knives even sharper. This is my new, quick, "go to" whet stone for every knife I own - regardless of size. A very good stone at a good price. If you like sharp blades - this is the stone.

I try to give five-star ratings to game-changer products. For me, this product was indeed so, I'm an oboe player, and like many oboe players create my own reeds to some degree. Oboe reed making requires a very sharp knife with a special edge to it so that it will scrape very thin shavings off of the reed. This DMT 10" sharpener was the fifth sharpening tool I used, and I will look no further. My reed-craft is markedly improving since I've been using the tool.

Sospecho que tengo Las zonas lisas tampoco son buenas para lijar. Tengo piedras de agua por 20 euros, que son mejores.mala suerte, pero el acabado no es uniforme y deja arañazos en las cuchillas.

Kann ich uneingeschränkt empfehlen

Nice stone for sharpening and honing. The fine and extra fine grit will sharpen all but the dullest or nicked blades. The sharpening isn't quite as polished as a wetstone, but it is easier to use and more forgiving - no mud, worrying about nicking the stone or preparing/flattening it. I like the large size of this, which is more rare to come by with sharpening stones - perfect for all sizes of knives, from small paring knives to large chefs knives.

Great Combination Stone with Base. Makes for less tedious sharpening and ability to rest your hands when doing serious sharpening for planer or chisel blades. Lasts a long time and less hassle to soaking Japanese stones and maintaining them. Often use my diamond bench stones to lap my Japanese stones.

Funktioniert super. Um Messer Rasiermesser scharf zu schleifen, benötigt man noch ein abzieleder.