DMT WM8FC 8-Inch Fine/Coarse DuoSharp Plus Bench Stone

DMT WM8FC 8-Inch Fine/Coarse DuoSharp Plus Bench Stone - Grey

DMT WM8FC 8-Inch Fine/Coarse DuoSharp Plus Bench Stone – Grey


DuoSharp and Dia-Sharp

The first rule of shop maintenance is sharpen your tools. DMT Diamond Whetstones, DuoSharp Bench Stones and Dia-Sharp Bench Stones, are renowned by woodworkers and others for their remarkable sharpening speed, precision flatness and ease of use.

Diafold and Mini-Sharp

The lightweight DMT Diafold and Mini-Sharp sharpeners are easy to use. The compact models are ideal for on the way. During transport, the handle is used as a protective cover for the diamond surfaces.

Guided Sharpening

The DMT grinding systems enable a professional edge care, regardless of the manual skill. Both novice and professional will enjoy precise, professional, consistent sharpening results.

Diamond Steel

DMT Diamond Steel Sharpeners combine high performance diamond and ceramic sharpening surfaces with the realigning and convenience of traditional steels for sharper results! DMT sharpening steels truly sharpen- not just hone.

Innovative, precision flat two grit diamond sharpener featuring both interrupted and continuous diamond sharpening. A hardwood box of 3- 6 inches Diamond Whetstone sharpeners makes a perfect gift. Dual purpose with compact convenience, the Double Sided Diafold Sharpener offers two 4 inches x 1 inches Diamond Whetstone surfaces in one light-weight, portable sharpener. For professional sharpening results, regardless of skill, depend on DMT Aligner Kits and Accessories. Fast honing diamond surface with the realigning function and convenience of traditional butcher’s steel. DMT’s precisely engineered Dia-Sharp Bench Stone with continuous diamond surface assures consistent, even sharpening every time.
Related Applications: Knifes, scissors, tools AND featuring a continuous zone for small and pointed tools Related Applications: Woodworking, home, culinary, hunting, and more Related Applications: Home, camping, toolbox, pavilion and more Related Applications: Handworked, culinary and outdoor sports. Related Applications: Chef knife, carving knife, fillet knife, paring knife, bread knife, skinning knife Related Applications: Woodworking and culinary.
Models: WM8CX, WM8FC, WM8EF, WM8EF-WB, W8EF-H-WB. Models: W6X, W6XP, W6C, W6CP, W6F, W6FP, W6E, W6EP, W8X, W8XNB, W8C, W8CNB, W8F, W8FNB, W8E, W8ENB and available in durable plastic storage case. Models: FWCX, FWEF, FWEEE. Models: ADELUXE, AKFC, AKFNR. Models: DS4F, DS2E, DSOF. Models: D8XX, D8X, D8C, D8E, D8EE. Size: 6 inches, 8 inches, 10 inches and 11,5 inches.
No oil is needed – sharpen dry or with water. No oil is needed – sharpen dry or with water. No oil is needed – sharpen dry or with water. No oil is needed – sharpen dry or with water. No oil is needed – sharpen dry or with water. No oil is needed – sharpen dry or with water.


Weight: 249 g
Dimensions: 33.66 x 11.43 x 9.53 cm; 249.48 Grams
Model: WM8FC
Part: WM8FC
Colour: Grey
Pack Quantity: 1
Batteries Required: No
Batteries Included: No
Manufacture: Acme United Corporation
Dimensions: 33.66 x 11.43 x 9.53 cm; 249.48 Grams
Quantity: 1

13 Responses

  1. VerlaBarnard says:

     Australia

    I have used these diamond plates for sharpening knives and chisels when I’m on site for years. They are very efficient and last for years.

  2. LesliFishman says:

     United States

    I had my reservations because I normally use a solid sharpening plate but its become my favourite coarse stone by far. Works smooth, takes a lot of material off and quik while prepping the blade for the higher grit stones. Good stuff!

  3. MarjorieZ92 says:

     United States

    I started my sharpening collection about five years ago, and DMT was one of the first brands I bought when buying diamond sharpening stones. The other DMT stones I have worked well and continue to do their jobs. However, the black X-coarse never really cut well from the start, so I mainly used the blue-coarse side. It wasn’t until the start of 2021 that I noticed the black x-coarse side was just flaking off if you tried to use it. So this stone was first to get phased out and changed with a new diamond sharpening stone from DMT.

  4. Anonymous says:

     United States

    I now have 2 of these providing 4 different gains. They work very well and never seem to get dull. I use the finest DuoSharp to lap my wet stones.

  5. Anonymous says:

     Germany

    Es brauchte auch bei mir 3 Anlufe bis ich einen Duosharp erhalten habe der wirklich unbenutzt zu sein schien (meine persnliche Einschtzung)
    Ich habe den grob / fein Duosharp und kann nur positives berichten mit etwas bung bekommt sicher jeder eine brauchbare bis sehr gute Schrfe ans Messer… Das Endergebnis ist natrlich von vielen Faktoren abhngig vor allem das die schneide nicht nach innen gewlbt ist, zb bertrieben, wie ein schl Messer, das geht mit diesem Schleifgeert nicht. MAN kann nur gerade und gewlbte (nach auen gewlbt vom messerrcken aus gesehen) Messer / Klingen damit gut bearbeiten.
    Schaut euch die zahlreichen Videos auf den bekannten Plattformen an wo auch alles erklrt ist was die Voraussetzung ist um ein Messer zu bearbeiten.

  6. DanialColunga says:

     United States

    Golden Review Award: 9 From Our UsersHave you ever spent a half hour trying to sharpen a knife with a hard blade steel like s30v only to take off barely any material? If so, you know it can be a real pain in the a**. Metallurgists have been doing some crazy stuff with powdered metal alloys in the last 10 years since I started sharpening my own knives. While the old sharpening tech still works, it is painfully slow for these new super hard steels. Something more aggressive is needed. DMT plates provide extremely fast and precise removal of material. Since they are so expensive I was worried about quality because of some reviews, but mine look great. There is a slight break in, but not too long. I was able to reprofile the edge of my benchmade 535 (s30v) in about 10-15 minutes using the extra coarse side. I did not find it to be too coarse like some reviews, and the plates are very flat. I think some reviewers mistake the extremely aggressive removal rate for a more coarse grit. I examined it under magnification and the diamonds appear to be consistently sized and about 220 mesh as DMT says. It is extremely fast even with s30v, to the point that every stroke counts. Instead of mindlessly giving it a few passes and then looking, I found myself concentrating on specific areas of the blade and looking at it after every pass. It allows you to cut so much with each stroke that it is almost like a power tool. DMT says that the extra coarse is a “safe alternative to powered grinding”. This is absolutely true with the added benefit of much less likelihood of heating the blade. It would be very easy to destroy knives as well with this system if it is misused, but that is true with any powerful and useful tool.

    Have you ever spent a half hour trying to sharpen a knife with a hard blade steel like s30v only to take off barely any material? If so, you know it can be a real pain in the a**. Metallurgists have been doing some crazy stuff with powdered metal alloys in the last 10 years since I started sharpening my own knives. While the old sharpening tech still works, it is painfully slow for these new super hard steels. Something more aggressive is needed. DMT plates provide extremely fast and precise removal of material. Since they are so expensive I was worried about quality because of some reviews, but mine look great. There is a slight break in, but not too long. I was able to reprofile the edge of my benchmade 535 (s30v) in about 10-15 minutes using the extra coarse side. I did not find it to be too coarse like some reviews, and the plates are very flat. I think some reviewers mistake the extremely aggressive removal rate for a more coarse grit. I examined it under magnification and the diamonds appear to be consistently sized and about 220 mesh as DMT says. It is extremely fast even with s30v, to the point that every stroke counts. Instead of mindlessly giving it a few passes and then looking, I found myself concentrating on specific areas of the blade and looking at it after every pass. It allows you to cut so much with each stroke that it is almost like a power tool. DMT says that the extra coarse is a “safe alternative to powered grinding”. This is absolutely true with the added benefit of much less likelihood of heating the blade. It would be very easy to destroy knives as well with this system if it is misused, but that is true with any powerful and useful tool.

  7. EwanVieraf says:

     United States

    This is a very good profiling stone. I purchased the xcoarse-coarse version and it very quickly removes material so you don’t have to grind for as long of a time, the only issue is, the stone seems to have some high spots. I’ve included some pictures of my knife after sharpening, it’s not the first time I sharpened it so I know the marks are the stone not the knife. I’m hoping it’s just a byproduct of the abrasive being higher in certain spots than others, if so I’ll update the review.

    This is a very good profiling stone. I purchased the xcoarse-coarse version and it very quickly removes material so you don't have to grind for as long of a time, the only issue is, the stone seems to have some high spots. I've included some pictures of my knife after sharpening, it's not the first time I sharpened it so I know the marks are the stone not the knife. I'm hoping it's just a byproduct of the abrasive being higher in certain spots than others, if so I'll update the review.

  8. Anonymous says:

     United States

    Golden Review Award: 3 From Our UsersSuper useful, definitely worth having a set. I am plus/minus on the hole pattern. It clearly leaves a pattern on the steel you sharpen despite best attempts to move in a somewhat circular fashion. It’s supposed to prevent clogging, which may well be true as I haven’t tried one without the hole pattern. But as long as you finish on a regular stone, you’ll be fine – it might be a good thing to prevent buildup and possibly worse scratches from debris on a flat surface. I just wonder if they could find a better/more uniform pattern that doesn’t leave its mark on your blades?

  9. Anonymous says:

     United States

    Golden Review Award: 5 From Our UsersWhile I think that this is a good sharpening method, note that you can not use the bench stone to flatten other sharpening stones. You might be able to get away with flattening a softer stone, but using it to flatten a harder sharpening stone ruined the extra course side of the diamond stone. It still feels rough, but it does not cut very well. Trying to sharpen a wood chisel on the damaged extra course side showed very little progress. I made much more progress (it went much faster) using just the course side which was not damaged since it was not used to flatten other sharpening stones. I do not know if the sharp edges of the diamond were somehow damaged or if they broke loose, but the stone would not cut. Very few, if any, small shavings (swarf), formed when using the damaged side and it took forever to show any progress when creating a new edge.

  10. Anonymous says:

     United States

    Golden Review Award: 3 From Our UsersLike the others have said, this is simply amazing. Even hardened steel blades grind down like butter on this unit.

    I have found that virtually ALL knives that you buy (with the notable exception of Moras) have the edge angles too steep, so you need to remove quite a bit of material from the blade before you can get to the honing stage. For this reason, the DMT Extra Coarse/Coarse stone is a necessity. (I bought the Fine/Extra Fine first and loved it, but soon realized that I needed the Coarse/Extra Coarse to start, otherwise I would be spending hours with the Fine.)

    For this reason, if you are serious, just buy the Extra Coarse/Coarse at the same time as you buy the Fine/Extra Fine, along with the little plastic stand, and welcome to the world of serious sharpening!

    The shipping was prompt. A great transaction.

  11. Anonymous says:

     United States

    A great beginning to the sharpening process. The coarse edge will quickly reprofile and edge angle to your liking, or repair nicks in the blade. You’ll want the extra coarse if it’s really bad though. The fine will start getting you towards a razer edge, though you could use it there if you didn’t want or need much sharper. You can move on to either the extra and extra extra fine diamond stones or some ceramic stones for finishing up and getting a razer edge.
    Remember to not use a lot of pressure with these. If you press too hard, you an actually remove some of the diamonds. They are held in place by a metallic layer and you can break that away if you press too hard. A light touch is all that’s needed.

  12. Stephen Slaybaugh says:

     United States

    I hate that DMT charges more than twice what I think this Duosharp is worth but, alas, I bought it anyway because … well, DMT and I both know that no other company (or product) can fill this niche as effectively.

    Yes … I reluctantly recommend this product and I WOULD purchase it again, knowing what I know about this product … and it’s performance … and it’s endurance.

    Very pricey … pretty heavy … The only product that does what it does and does it this well.

    Deduct one star for the high price. Please make it lighter weight and less expensive. Thanks.

    This goes in my expedition pack. The weight and size are totally justified.

    Grumble-grumble.

  13. HellenBPMtz says:

     United States

    I like a sharp knife but I am far from an an expert in tool sharpening. I had a couple of fairly expensive knives that I could no longer sharpen with the stones, steel rods, and ceramic sticks that I had traditionally used. I decided to invest in a diamond stone. This DMT bench stone works great and the fine/course combo has been good to restore my dull knives or tone those that were in better shape. I liked it so much that I also bought a small pocket model and and a rod by the same company for serrated blades. I am using it in the available plastic base and I think that is the way to go. I have sharpened every knife we own, my axes, all my tree and shrub trimming equipment, and I used the diamond bench stone to flatten my old sharpening stones that were grooved from use. I am glad that I bought a larger size for all the things I have sharpened. It is easy to clean with soap and water. A solid tool investment.