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7.3
DMT (Diamond Machining Technology)
DMT DuoSharp Plus 8" Whetstone
$73.09$124.85across 2 retailers
The DMT WM8EF-WB 8-Inch DuoSharp Plus Bench Stone provides a high-quality sharpening experience thanks to its dual-sided design and micronized monocrystalline diamond surface. It's a great investment for those looking for a durable, versatile, and efficient sharpening stone. However, beginners might need some practice to use it effectively. If budget is a concern, you might want to explore other options, but the quality and speed of sharpening it delivers are well worth the price for many users.
Model: WM8EF-WBColor: YellowUPC: 17042003708
Lowest at Amazon
$70.17 at AmazonLowest at any Popular Retailer
$68.77 at Home DepotWhere to Buy
Prices last updated: April 16th 2026 8:23 pm
Product Score
Based on professional reviews and customer feedback
7.3/10
Overall
7.3
Consumer
Why this score?
The DMT WM8EF-WB 8-Inch DuoSharp Plus Bench Stone earns its high score primarily due to its exceptional sharpening speed and effectiveness, as highlighted by numerous users who appreciate its ability to quickly restore dull blades across various knife types. However, some concerns about durability, potential quality inconsistencies, and lack of clear usage instructions slightly temper its overall appeal. The product's competitive pricing for its performance makes it a valuable choice for both amateur and professional sharpeners.
8+ Excellent6-8 Good4-6 Average<4 Poor
Score
The DMT WM8EF-WB 8-Inch DuoSharp Plus Bench Stone earns its high score primarily due to its exceptional sharpening speed and effectiveness, as highlighted by numerous users who appreciate its ability to quickly restore dull blades across various knife types. However, some concerns about durability, potential quality inconsistencies, and lack of clear usage instructions slightly temper its overall appeal. The product's competitive pricing for its performance makes it a valuable choice for both amateur and professional sharpeners.
7.3/10
Overall
Pros
- •Duaided diamond stone offers both extra fine and fine grits, making it versatile for various sharpening needs.
- •Micronized monocrystalline diamond surface ensures fast and efficient sharpening.
- •Sturdy plastic base provides stability during use.
- •Can be used dry or with water, which eliminates the need for messy oils.
- •Engineered surface maintains flatness for consistent results.
- •Sharpens faster than conventional sharpening stones, saving time and effort.
- •Designed and manufactured in the USA, which may be a point of quality assurance for some users.
Cons
- •Some users may find the price to be higher compared to other sharpening stones.
- •Requires users to apply the correct angle and pressure for optimal results, which might be challenging for beginners.
Bottom Line
The DMT WM8EF-WB 8-Inch DuoSharp Plus Bench Stone provides a high-quality sharpening experience thanks to its dual-sided design and micronized monocrystalline diamond surface. It's a great investment for those looking for a durable, versatile, and efficient sharpening stone. However, beginners might need some practice to use it effectively. If budget is a concern, you might want to explore other options, but the quality and speed of sharpening it delivers are well worth the price for many users.
What Reviewers Are Saying
Praised
great for large knives4%
effective sharpening9%
pricey but worth it4%
stays flat over time9%
works aggressively4%
Criticized
diamond surface wears quickly9%
ambiguous grit labeling4%
needs better instructions4%
unpleasant scratch patterns4%
Customer Ratings
4.6736 reviews
5
78%
4
10%
3
6%
2
1%
1
4%
Based on 736 reviews from Amazon
Professional Reviews
Common Questions
When it comes to the durability of the DMT DuoSharp Plus 8" Whetstone, there's no specific lifespan mentioned by the manufacturer. But based on our research, people who have used it report that it hol...
Read full answer📚More About DMT DuoSharp Plus 8" Whetstone
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TLDR Review: DMT DuoSharp Plus 8" Whetstone
The DMT WM8EF-WB 8-Inch DuoSharp Plus Bench Stone earns its high score primarily due to its exceptional sharpening speed and effectiveness, as highlighted by numerous users who appreciate its ability to quickly restore dull blades across various knife types. However, some concerns about durability, potential quality inconsistencies, and lack of clear usage instructions slightly temper its overall appeal. The product's competitive pricing for its performance makes it a valuable choice for both amateur and professional sharpeners.
TLDR Review·1 years ago
7.3
Overall
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Q&A·2 years ago
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Q&A·2 years ago
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How do you use the DMT DuoSharp Plus 8" Whetstone?
Q&A·2 years ago
Discussion
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