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(More customer reviews)I sharpen my kitchen cutleries by hand using this DMT diamond stone and a Japanese combination water stone: Woodstock D1130 1000 Grit and 6000 Grit Japanese Waterstone. Despite this is called a "fine" grit stone, it is plenty aggressive for a typical kitchen knife. My friend has a chef's knife which had a broken tip (~1/4") and a chipped edge, and I was able to restore the tip and the edge by using this "fine" stone. The DMT diamond stones need a small amount of water during sharpening. It is to help prevent metal fines from sticking to the sharpening surface. In my opinion, water lubricant stones are superior to oil assisted stones for two reasons. First, it is easy to apply water and to clean up afterward. Second, water is less slippy than oil and therefore it is safer to sharpen a knife with wet hands than oiled hands. DMT makes interrupted surface and continuous surface diamond stones. This belongs to the former. For most applications, the interrupted surface is slightly superior because it allows metal fines to fall into the slightly recessed area and remains out of the sharpening surface. This allows greater sharpening performance by reducing the frequency of washing and removing the metal fines from the surface. However, if your tools have very small blades, then they will get caught in the recessed area. You will need a continuous surface diamond stone for these small blade tools. I have upload a closeup customer picture of the diamond stone. The stone is 6" X 2", adequate for most kitchen knives, though a wider one would be nicer. The receded red dot areas are 1/8" in diameter. In my experience, your blade needs to be at least 1" in length to comfortably take advantage of the interrupted surface.
I bought this DMT fine diamond stone for $35. I find this diamond stone to be very versatile. It cut fast and uniform, and yet gives you full control. The DMT grinding surface is extremely flat, so I also use it to flatten my Japanese water stones. If you have never used a diamond stone, then you will be surprised how fast this stone can cut/grind. I certainly was. I have an aluminum oxide oil stone and I have to push my knives downward at the stone to sharpen them. Whereas I simply slide my knives back and forth on this diamond stone. This saves time, energy and improve sharpening results. Frankly, it is probably safer too. Because the diamond stones cut faster than other stones, I like to suggest new users to check on their progress a bit more often.
Despite this DMT stone is advertised as fine grit, the grit size is 600 (25 microns) which is too coarse to be a finishing stone for knives. Knife edges ground by this diamond stone should be polished on finer stones.
Assuming you are into sharpening your knives or tools, I highly recommend this or one of the other diamond stones. You won't regret getting a DMT diamond stone.
*Updated on Dec 27 2009*
Yesterday, I noticed my Shun bread knife has two very tiny but visible chips, not quiet sure where they come about. I put it on this diamond stone and it managed to grind out the chipped area. I then finished it on my 1000 and 6000 grit water stones. This DMT diamond stone is not only able to restore my friend's damaged budget knife, but it also worked for a VG-10 core Shun knife.
*Update on Mar 02, 2010*
I bought the DMT W6XP 6" Diamond Whetstone Sharpener - Extra-Coarse With Plastic Box for knife reprofiling. The extra coarse stone makes reprofiling an knife edge/bevel very easy. However, for regular knife maintaince, this fine DMT stone is probably more suitable.
*Update on Jun 08, 2010*
I have retired my Woodstock Japanese waterstone for a couple of months because it is essentially worn out. I have since bought Naniwa Super waterstones for replacement. Nevertheless, I am still using the DMT diamond stone and it is part of my setup. It seems to be running strong.
Click Here to see more reviews about: DMT W6FP 6-Inch Diamond Whetstone Sharpener - Fine With Plastic Box
This all-purpose whetstone sharpens and hones a variety of household tools and equipment, maintaining the accessories for the hobbies of just about everyone in the house. Its most common use is for sharpening kitchen cutlery and scissors; however, this whetstone also works on chisels, planes, masonry drills, and other shop tools; garden tools; ice skates; climbing equipment; ski edges; fishhooks; ceramic; stone; and glass. The whetstone is durably and uniquely constructed of perforated steel molded into a plastic base. The surface features minute pieces of diamond, the hardest known material for sharpening, embedded into a nickel plate, to achieve an extremely sharp edge. The bonded diamonds are arranged around an innovative pattern of plastic discs and the combination of these two materials greatly reduces sharpening time and resists wearing over time.
This particular whetstone is encrusted with a fine diamond grit of 600 mesh to put a razor-sharp edge on any type of blade. The surface should be moistened before sharpening and the blade should be passed over the whetstone with light pressure at a 20-degree angle to get the proper edge without dulling it. After sharpening, the whetstone may simply be wiped off and its nonporous properties prevent water from seeping below the surface.
This whetstone measures 6 by 2 by 3/4 inches and has rubber safety feet underneath it to prevent sliding during sharpening. DMT generously vows to replace any product found to be defective free of charge. --Cristina Vaamonde
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