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DMT WS4XX 4" Diamond Whetstone Model, Extra-Extra Coarse

Customer Reviews 5.000 Read 4 reviewsWrite a Review
Part Number: DMTWS4XX
Manufacturer: DMT Sharpeners
Retail Price: $21.92
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DMTWS4XX: WS4XX 4" Diamond Whetstone Model, Extra-Extra Coarse

For extremely fast stock removal of work-hardened burrs created by man-made snow, rocks and ice and maintain your edge on the slopes with just a few strokes. Extra-Extra Coarse diamond (120 micron / 120 mesh) for extreme stock removal to repair very damaged edges. No messy oils needed—use 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.

  • Quick edge repair anywhere
  • Extra-Extra Coarse diamondfor extreme stock removal
  • Hones edges faster than conventional stones with DMT®'s monocrystalline diamond surface
  • No oil is needed-sharpen dry or with water
  • Durable & flexible construction provides for customize use
Made in USA
Made in USA
This product is USA born and raised.
5.000 (4 reviews)
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5 out of 5
Philip O
Fairbanks, Alaska
May 08, 2015
Pros: Durability, Overall Quality
Cons: None
Using up the diamond sharpeners
I am the neighborhood knife sharpener. I have worn out two of the coarse whetstones and several intermediate grits. I have not used a natural stone since the late 1980's. Reshaping a Katana did in the latest stone, 28-1/2" of folded steel with an edge at Rockwell 63. My everyday carry folder is made of ZDP189 at a Rockwell of 67 which just skids on top of natural whetstones without cutting. Yes, I am totally a fan of DMT sharpening equipment, some other brands also function well but DMT holds consistent surface smoothness and even cutting that is a small step above.
5 out of 5
Jan 22, 2014
Pros: None
Cons: Durability, Ease of Use, Effectiveness, Overall Quality
DMT forever
DMT stay the best diamond whetstones.
5 out of 5
Warren Higgins
Huntsville, Al
May 25, 2011
Pros: Durability, Ease of Use, Effectiveness, Overall Quality
Cons: None
Excellent product for setting (or re-setting) an edge
Very nice to have the ability to easily adjust a factory edge bevel that's too thick for my preferences, and doesn't take hours to do. Make sure to use light pressure, and let the stone do the cutting. The thing with DMT stones is that they take forever to wear out. There will be an initial loss of cutting aggression after it has been used for a little while, because the diamond dust that's sitting right on the very top (that cuts so deeply) will embed in steel and rip off of the stone, but this is kind of like breaking in a gun with a few hundred rounds. Once those really sharp little teeth have been removed, the stone will cut slightly more slowly but with a MUCH more consistent finish for years and years. I sharpen professionally and have worn out exactly one DMT stone in eight years on hundreds of knives.
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