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DMT W7EFC Diamond Whetstone Mini Diamond Stone - Coarse / Fine / Extra-Fine - Set of 3

4.2 out of 5 stars 104 customer reviews
| 12 answered questions

List Price: $23.12
Price: $19.87 & FREE Shipping on orders over $35. Details
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Coarse / Fine / Extra-Fine
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  • Superior diamond sharpening stones
  • Legendary quality
  • Made in the USA
  • Quick edge repair anywhere
  • 3 different diamond stones: extra-fine to polish and refine an edge, fine for a razor sharp edge and coarse to transform a dull edge
  • Sharpens knives faster than conventional stones with DMT's monocrystalline diamond surface
  • No oil is needed-sharpen dry or with water
  • Durable construction will provide years of consistent performance and reliable service
See more product details
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$19.87 & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • DMT W7EFC Diamond Whetstone Mini Diamond Stone - Coarse / Fine / Extra-Fine - Set of 3
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Total price: $55.09
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Style: Coarse / Fine / Extra-Fine
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Product Description

Style: Coarse / Fine / Extra-Fine

Product Description

Dmt is recognized as the worldwide leader in Diamond knife sharpeners and sharpening products, with a diverse product line and reputation for quality and innovation. Dmt's patented and award-winning products are known for their superior quality and versatility, are easy to use, and allow for sharpening in a fraction of the time required by other methods. Dmt manufactures a full line of Diamond knife sharpeners and other sharpening tools for use in woodworking, culinary arts, gardening, camping, fishing, hunting, outdoor and winter sports, industrial applications and more.

From the Manufacturer

A portable enhancement to any tool kit is the Mini Diamond 70mm stone in DMT's signature polka-dot pattern. Kit of 3 comes in Coarse (45 micron / 325 mesh) to quickly restore a neglected edge; Fine (25 micron / 600 mesh) for a razor sharp edge; Extra-Fine (9 micron / 1200 mesh) to polish and refine a razor edge after sharpening with a coarser diamond. Size: 2 11/16 x 15/16 x 3/16 Sharpening with diamonds is fast and easy. No messy oils needed--sharpen dry or with water. Durable construction will provide years of consistent performance and reliable service For proper tool maintenance, woodworkers, chefs and other professionals rely on the superior quality and versatility of DMT products. Made in USA.

Product Information

Style:Coarse / Fine / Extra-Fine

Technical Details

Part Number W7EFC
Item Weight 1.1 ounces
Product Dimensions 2.7 x 0.9 x 0.2 inches
Origin USA
Item model number W7EFC
Style Coarse / Fine / Extra-Fine
Item Package Quantity 1
Warranty Description Product is unconditionally guaranteed; any product found to be defective will be replaced free of charge.

Additional Information

ASIN B00004WFTD
Customer Reviews
4.2 out of 5 stars 104 customer reviews

4.2 out of 5 stars
Best Sellers Rank #5,122 in Home Improvements (See top 100)
#14 in Home Improvement > Power & Hand Tools > Hand Tools > Sharpening Stones
#475 in Home Improvement > Contractor Supply
Shipping Weight 1.9 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available October 6, 2004

Warranty & Support

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

Important Information

Safety Warning

warning:This product contains nickel, a chemical known to the state of california to cause cancer.

Customer Reviews

Top Customer Reviews

Style Name: Coarse / Fine / Extra-Fine Verified Purchase
I got these to sharpen my skis. They removed burrs and put a nice edge on my skis when I clamped the stones to a sharpening guide and used plain water as a lubricant. My only complaint is that the whetstones are mostly plastic. My edge guide has "gripper teeth" where the file is clamped on, and if the stone is not clamped in the right place, the uneven surface on the guide can warp the stone a tiny bit.
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Style Name: Coarse / Fine / Extra-Fine Verified Purchase
I tried sharpening a woodworking chisel or two, working progressively with the coarse stone through the extra-fine one, and got edges sharp enough for all my ususal woodworking purposes. The stones are on the small side, but are workable for about any woodworking chisel and for block-plane irons. Diamond sharpening is considerably less hassle than using water stones. I'd recommend these small, relatively low-priced diamond stones to other woodworking hobbyists on a budget--although beginners should understand that sharpening by hand takes some practice. It's not terribly hard to learn, though.
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Style Name: Coarse / Fine / Extra-Fine Verified Purchase
well, i love knives.
they are a very important tool no matter what you do with them.
(as long as it's legal)
while on a trip with your pocket knife, preparing food with your chef's knife or anything else requires a well maintained knife.
even though i didnt think this tool would replace a professional sharpening every once in a while its a good way to keep things in good shape.

so in general - the 3 level system is very good!
though if you take care of your knives there is no reason to use the coarse one.
they do the job very well!
however, they are very, very small...
a little over the length of a AA battery and double the width.
which makes it hard to hold or use with bigger knives.

so, if you need something portable for small knives - this is a winner.

so its not
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By Zeek on November 11, 2013
Style Name: Coarse / Fine / Extra-Fine Verified Purchase
The stones are of a sufficient size to handle comfortably the tools I am sharpening which includes chisels, knives, and both router and shaper cutters. Haven't used them enough to determine their lasting capacity.
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Style Name: Coarse / Fine / Extra-Fine
These little guys put a nice edge on my knives, the only drawback I could see was they're on the small side, So you won't easily be sharpening a blade larger than your average pocket knife or maybe a filleting knife in the tacklebox... Bowies and such would just be awkward at best!
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Style Name: Coarse / Fine / Extra-Fine Verified Purchase
The DMT family of knife sharpening products are top shelf kit. I use them in the kitchen and in the garage, from sharpening a shovel (yes, it really works better when the edge is sharp) to sharpening steak knives. These were purchased to add to my truck tool box, small, easy to stow away. They work very well, just remember to let the sharpening edge do the work for you, do NOT press down hard, you will just remove the diamond media and ruin the surface.
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Style Name: Fine
I was very impressed with the ability of such a small stone to tune up even the biggest blades. It fits right into the extra pocket on my leatherman wave so I am never without a way to resharpen the blades. Also this stone is much faster to use than a conventional wetstone.
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Style Name: Coarse / Fine / Extra-Fine Verified Purchase
It was a little hard to sharpen my knives, but I did it. Really like them.
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DMT W7EFC Diamond Whetstone Mini Diamond Stone - Coarse / Fine / Extra-Fine - Set of 3
This item: DMT W7EFC Diamond Whetstone Mini Diamond Stone - Coarse / Fine / Extra-Fine - Set of 3
Price: $19.87
Ships from and sold by Amazon.com
Want to discover more products? Check out these pages to see more: mini file, diamond sharpening stone sets, extra fine sharpening stone, fine diamond sharpening stone