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Diamond Machining Technology (DMT) 8-in. DuoSharp Double-Sided Diamond Whetstone Bench Stone, Fine/Coarse Grit Sharpener with Base (WM8FC-WB)

4.6 4.6 out of 5 stars 669 ratings
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Amazon's Choice in Sharpening Stones by DMT (Diamond Machining Technology)

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Fine/Coarse

Purchase options and add-ons

Material Stone
Brand DMT (Diamond Machining Technology)
Color Multicolor
Product Dimensions 13.25"L x 13.25"W x 11.5"H
Item Weight 0.49 Kilograms
Grit Type Coarse Grit,Fine

About this item

  • Diamond Wet Stone Sharpening Kit: An excellent counter and bench sharpener, this precision flat, two-surfaced diamond stone comes with a bench stone base accessory
  • Dual Diamond Surface: Coarse diamond (45 micron / 325 mesh) quickly restores neglected edges; Fine diamond (25 micron / 600 mesh) hones razor-sharp edges
  • Versatile: Engineered with a larger, wider diamond surface for sharpening a variety of knives and edges, this diamond stone sharpener provides consistent, even sharpening every time
  • Fast & Easy: A micronized monocrystalline diamond surface sharpens edges faster and easier than conventional sharpening stones; No messy oils are needed either -- sharpen dry or with water
  • Made In The USA: Preferred by woodworkers, chefs, and other professionals, our durable diamond sharpening stones are built to provide years of consistent performance and reliable service
  • Excellent counter or bench use for sharpening a variety of knives and edges plus a continuous diamond zone for small and pointed tools
  • Two sided sharpening with coarse diamond to transform a dull edge and fine diamond for a razor sharp edge

Additional Details

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Customer ratings by feature

Sheerness
4.8 4.8
Easy to use
4.7 4.7
Versatility
4.4 4.4
Value for money
4.3 4.3

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Diamond Machining Technology (DMT) 8-in. DuoSharp Double-Sided Diamond Whetstone Bench Stone, Fine/Coarse Grit Sharpener with Base (WM8FC-WB)
DMT (Diamond Machining Technology) Diamond Machining Technology (DMT) 8-in. DuoSharp Double-Sided Diamond Whetstone Bench Stone, Fine/Coarse Grit Sharpener with Base (WM8FC-WB)
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Price-19% $76.94
List:$94.42
-10% $55.21
List:$61.58
-17% $83.00
List:$99.99
-19% $38.31
List:$47.16
-20% $33.58
List:$41.85
-5% $53.70
List:$56.46
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Customer Ratings
Easy to use
4.7
4.6
4.3
5.0
4.6
5.0
Value for money
4.3
3.7
3.7
4.6
4.2
3.3
Versatility
4.4
4.4
2.8
Durability
3.6
3.7
4.6
For beginners
3.4
3.7
3.8
Sold By
Amazon.com
Amazon.com
dutchgoldfinch
Amazon.com
Amazon.com
Amazon.com
material
Stone
Synthetic
Stone
Synthetic
Synthetic
Synthetic
grit type
Coarse Grit,Fine
Coarse
Fine
Extra Coarse
Coarse,Fine
Extra Fine,Extra-fine,Fine
weight
0.49 kilograms
1 kilograms
2.09 pounds
2.4 ounces
0.07 kilograms
8.8 ounces

From the brand


From the manufacturer

8-Inch DuoSharp Plus Fine/Coarse Grit Diamond Bench Stone with Base

Double-Sided

Interrupted and Continuous Surfaces

Achieve Razor Sharp Results

Easy to Use, Built to Last

Interrupted and Continuous Surfaces

Both sides of the 8-Inch DuoSharp feature interrupted and continuous diamond surfaces for a variety of sharpening tasks from knives to scissors to small pointed tools, respectively.

Achieve Razor Sharp Results

Equipped with fine and coarse diamond surfaces, you can hone a razor sharp edge with one side after restoring the same edge from a dull state with the other.

Easy to Use, Built to Last

With no oils or sharpening compounds needed for use, you can sharpen dry or with water to get an immaculate edge in seconds. Complete with a durable construction that will provide years of consistent performance, the superior quality and versatility of the 8-Inch DuoSharp will speak for itself.

Extra Fine Grit Bench Stone with Base

  • Fine and Coarse Grit Diamond
  • Sturdy Base
  • Versatile Surfaces
  • Durable Construction

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Product information

Technical Details

Additional Information

Warranty & Support

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Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Diamond

Diamond Machining Technology (DMT) 8-in. DuoSharp Double-Sided Diamond Whetstone Bench Stone, Fine/Coarse Grit Sharpener with Base (WM8FC-WB)


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Product guides and documents

Product Description

Product Description

Innovative, multi-patented DuoSharp Bench Stone is a precision flat, two-surfaced diamond sharpener guaranteed to provide consistent, even sharpening every time. An excellent counter and bench sharpener, this diamond plate features a larger, wider surface for sharpening a variety of edges -- use as a lawn mower blade sharpener. This honing stone also comes with a bench stone base accessory. Coarse diamond (45 micron / 325 mesh) quickly restores neglected edges; Fine diamond (25 micron / 600 mesh) hones razor-sharp edges. Thanks to our honing tool, sharpening is fast and easy. No messy oils needed -- sharpen dry or with water. Our durable sharpening system will provide years of consistent performance and reliable service. Woodworkers, chefs, and other professionals rely on the superior quality and versatility of USA-made DMT products.

Amazon.com

The DMT WM8FC-WB 8-Inch Fine / Coarse DuoSharp Plus Bench Stone with Base offers the finest in sharpening technology. Doublesided, with both fine and coarse diamond surfaces, this stone is capable of handling a wide variety of edges with industry-leading precision and accuracy. This innovative stone offers a multi-patented sharpening surface that features a convenient dual-sided design plus a continuous diamond zone for sharpening small and pointed tools. The stone's hard wearing surface and durable design guarantees that it will provide consistent, even sharpening for years to come.

Versatile Sharpening
With the DMT 8-Inch DuoSharp Plus Bench Stone, sharpening dull edges has never been easier. Use the coarse diamond surface (45 micron / 325 mesh) to quickly and easily restore a neglected edge, or take advantage of the fine diamond surface (25 micron / 600 mesh) to get that razor sharp edge. Simply place the DuoSharp Bench Stone in the included base, or set it on any flat surface, and its non-skid rubber mat will keep it firmly planted during sharpening.

The large diamond surface allows the 8-Inch DuoSharp Plus Bench Stone the ability to sharpen virtually any knife or edged tool, including, wood carving tools, hunting knives and much more. In fact, the DMT 8-Inch DuoSharp Plus Bench Stone's versatility is seemingly endless. Its ease of use is equally impressive. You can ditch the messy oils that are required with other sharpeners, and the innovative diamond surface allows you to easily sharpen dry or with water.

Innovative Diamond Surface
DMT's patented DuoSharp surface provides unparalleled performance thanks to its monocrystalline diamond surface, which sharpens faster and more efficiently than other sharpeners. This allows you to spend less time sharpening edges and more time actually using them. It also features a convenient continuous diamond zone that makes easy work out of any small or pointed tools that would otherwise be tough to sharpen. DMT uses only the finest materials for their products, and all of their products are made in the USA.

Compact Design
The 8-Inch DuoSharp Plus Bench Stone is extremely compact and lightweight which makes it a breeze to take anywhere you may need to sharpen a blade, tool, knife, or any other type of edge that needs sharpening. It measures 8 x 2.63 x 0.38 inches (LxWxH), and it weighs just 1.44 pounds.

DuoSharp DuoBase: A Must-Have for your Stone
The DMT 8-Inch DuoSharp Plus Bench Stone comes with the DMT B8250 DuoSharp DuoBase Bench Stone Base, a must-have accessory that provides a safe, convenient, and reliable place to mount your stone. Its smart, innovative design provides a full two inches of knuckle clearance, and its useful rubber feet provide a stable base for sharpening. Use it on any bench or counter with a flat surface for the best performance.

Reliable Performance
As with any DMT product, the DuoBase Bench Stone accessory is designed with only the finest materials that are proven to pass the test of time. Its superior build ensures the same high-quality, consistent performance for years to come.

The B8250 DuoBase Bench Stone Base is extremely lightweight and compact. It measures 12.20 x 4.60 x 2.20 inches (LxWxH), and it weighs a mere 0.78 pounds. Don't let its portable size fool you though: this DMT Bench Stone Base is built tough. It's used by woodworkers, chefs, and other professionals around the world because of its superior build-quality and performance.

About Diamond Machining Technology (DMT)
Since 1976, Diamond Machining Technology (DMT) has been recognized as the leading innovator in diamond sharpening technology. They've pioneered such ground-breaking innovations as the DuoSharp bench stone, the Diamond Whetstone, and the Diafold Magna-Guide Sharpening System--all of which that have revolutionized the diamond knife and tool sharpening industry. Based out of Marlborough, Massachusetts , DMT continues to develop new and exciting diamond sharpening solutions for both consumer and commercial applications.

DMT is committed to developing and producing the world's finest diamond knife and tool sharpeners. DMT takes pride in the fine workmanship of their products, and they only use the highest quality materials in their manufacturing process. All of their products are guaranteed to be free of defects, and any product that doesn't live up to DMT's high standards will be replaced free of charge by the company.

What's in the Box
DMT 8-Inch DuoSharp Plus Bench Stone with fine grit on one side and coarse grit on the other; bench stone base.

Important information

Safety Information

WARNING: use of this product can expose you to chemicals including nickel which is known to the State of California to cause cancer. For more information go to www.p65warnings.ca.gov.

Customer reviews

4.6 out of 5 stars
4.6 out of 5
669 global ratings

Customers say

Customers like the quality, ease of use, appearance and value of the knife sharpener. For example, they mention it's effective, works quickly and easily, and has a great design. That said, opinions are mixed on sturdiness.

AI-generated from the text of customer reviews

133 customers mention130 positive3 negative

Customers are happy with the quality of the knife sharpener. They say it's the best they've ever owned, it produces a good working edge without any trouble. Customers also mention that it'll effectively keep their knives sharp. Overall, customers are satisfied with the product and recommend it to others.

"Best sharpening device I have ever had and I have been using one for over 70 years." Read more

"...This sharpens dry or with a splash of water and the fine side is great for an occasional touch up when the strop is no longer bringing an edge back..." Read more

"...This bench stone is so useful, it works so well, and also so quickly that it is just a pleasure to sit down and use it...." Read more

"...The DMT stone holder is a genius design and is superior in quality. Definitely my go-to sharpening tool." Read more

46 customers mention43 positive3 negative

Customers find the knife sharpener easy to use. They say it's a super simple and effective way to keep your knives sharp. Customers also say it works quickly and easily, with almost no set up time and no messy water and slurry. They also say the stone is convenient and useful right out of the box, and it makes very quick work of resharpening an edge.

"...This bench stone is so useful, it works so well, and also so quickly that it is just a pleasure to sit down and use it...." Read more

"...Freehand lapping comes pretty quick." Read more

"...Rinse, dry and put away.No mess. No fuss." Read more

"...diamond plates sharpen my tools as fast or even faster with almost no set up time and no messy water and slurry dripping all over my work area...." Read more

28 customers mention28 positive0 negative

Customers are satisfied with the appearance of the knife sharpener. They mention that it is a great design, and simple to use. They also say that the DMT diamond plates are fantastic, and the red side is pretty good. Overall, customers are happy with their purchase and recommend it to others.

"...This sharpens dry or with a splash of water and the fine side is great for an occasional touch up when the strop is no longer bringing an edge back..." Read more

"The “stone” is nice. I have the coarse 325 and fine 600 combo. The plastic base is cheap. Better than nothing ... but not by much." Read more

"...This bench stone is so useful, it works so well, and also so quickly that it is just a pleasure to sit down and use it...." Read more

"...The DMT stone holder is a genius design and is superior in quality. Definitely my go-to sharpening tool." Read more

23 customers mention19 positive4 negative

Customers like the value of the knife sharpener. They say it's a great investment, saves them money, and is worth it for sharp knives.

"...Definitely worth every penny and cleanup is a breeze with soap and water. The DMT stone holder is a genius design and is superior in quality...." Read more

"...This larger sharpening stone with two different grits is a really economical and efficient tool...." Read more

"...Great investment." Read more

"A great value. Have been using it for months and my workshop, fingers, and finished products are all the better for it...." Read more

16 customers mention14 positive2 negative

Customers like the stability of the knife sharpener. They mention that the base is sturdy, holds the stone securely, and stays on bench well. The plates are bonded well and flat, and it doesn't wiggle at all. The base works great and doesn''t move. The rubber feet keep the base from moving, and the 8" surface is ideal for large kitchen knives.

"...The base is stable with the rubber feet and the clips hold the stone flat and firm. No complaints from me." Read more

"...The rubber feet keep the base from moving and 8" surface is ideal for large kitchen knives...." Read more

"...It doesn't slide on the kitchen counter when used -- this is a good thing...." Read more

"...The base works well and will stick to a table even if the table is covered in water from sharpening...." Read more

14 customers mention14 positive0 negative

Customers like the size of the knife sharpener. They say it's large enough for chef knives, as well as small blades like paring knives. They also say the large surface area makes quick work out of sharpening your knives.

"Its large size allows for long and wide strokes. And it’s sturdy.No oil to deal with...." Read more

"...feet keep the base from moving and 8" surface is ideal for large kitchen knives...." Read more

"...Its big enough for chef knives, as well as small blades like paring knives. I like a sharp knife, and this is doing the job...." Read more

"...The size is great and the base for it is quite stable...." Read more

6 customers mention6 positive0 negative

Customers find the knife sharpener easy to clean. They mention it's worth every penny, and cleanup is a breeze with soap and water. Some say that it helps keep the surface clean.

"...Definitely worth every penny and cleanup is a breeze with soap and water. The DMT stone holder is a genius design and is superior in quality...." Read more

"...a little water provided me with better results and also helps me keep the surface clean...." Read more

"...razor sharp and consistently perfect as this one, AND I can easily rinse it off with water when finished...." Read more

"...Sharpened knives quickly and very well. Easy to use. Easy to clean. I threw out the carbon stone sharpener I bought previously...." Read more

23 customers mention15 positive8 negative

Customers are mixed about the sturdiness of the knife sharpener. Some mention it's big and sturdy, great for large implements, and will last a lifetime. However, others say that the plastic bench is not as sturdy as they thought it would be, the diamond stone wears well, and the plastic doesn't maintain grit or courseness.

"Its large size allows for long and wide strokes. And it’s sturdy.No oil to deal with...." Read more

"Solid and well made" Read more

"...the scratch pattern, the feedback is terrible, and they don't seem to maintain there consistency...." Read more

"It's Flat enough and is Tough" Read more

DMT Makes the Best Diamond Sharpening Stones
5 Stars
DMT Makes the Best Diamond Sharpening Stones
I really, REALLY enjoy sharpening my knives on this.The Blue course / Red fine are really more like a medium and a medium fine. If I could have gone back I would have tried to get a Black (extra course) and Red (fine).The base works well and will stick to a table even if the table is covered in water from sharpening. (push the base into the ta+ble and move it around a bit. This particular stone with the holes in between the diamond impregnated steel is better for larger knives, and is not quite as good for chisels on a honing guide. The continuous diamond zone can be good for finish chisels but is harder to fully sharpen them quickly.After buying my first DMT stone, I bought 3 more and a portable one, and never went back to india stones or aluminum oxide, etc.
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Top reviews from the United States

Reviewed in the United States on March 8, 2024
Style: Fine/CoarseVerified Purchase
Reviewed in the United States on January 20, 2024
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Reviewed in the United States on December 27, 2019
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Reviewed in the United States on February 8, 2013
Style: Fine/CoarseVerified Purchase
11 people found this helpful
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Reviewed in the United States on November 26, 2023
Style: Coarse/Extra CoarseVerified Purchase
Reviewed in the United States on November 12, 2023
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Reviewed in the United States on November 23, 2023
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Reviewed in the United States on February 10, 2024
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Top reviews from other countries

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Agustín Castillo Martínez z
5.0 out of 5 stars Excelente Herramienta
Reviewed in Mexico on December 21, 2023
Style: Fine/CoarseVerified Purchase
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Agustín Castillo Martínez z
5.0 out of 5 stars Excelente Herramienta
Reviewed in Mexico on December 21, 2023
Excelente Herramienta
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schnappach
5.0 out of 5 stars Geniale Schärfeeinrichtung
Reviewed in Germany on January 26, 2024
Style: Fine/CoarseVerified Purchase
One person found this helpful
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Cliente Amazon
5.0 out of 5 stars Spettacolo!!!
Reviewed in Italy on June 25, 2021
Style: Coarse/Extra CoarseVerified Purchase
Rico
5.0 out of 5 stars Good price. The stand works better than I expected.
Reviewed in Canada on February 8, 2019
Style: Coarse/Extra CoarseVerified Purchase
Il Berru
4.0 out of 5 stars Lastra diamantata
Reviewed in Italy on January 8, 2024
Style: Coarse/Extra CoarseVerified Purchase