DMT A4EE 4-Inch Diamond Whetstone for use with Aligner Extra-Extra Fine
by DMT
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List Price: Our Price: $13.80 You Save: $4.24 (24%) Availability: Usually ships in 1-2 business days Buy Used: from $12.67 (click here) Category: Tools See more product details |
Product Details
Manufacturer: DMTModel: A4EE
Product features:
- Portable pocket convenience
- Extra Extra Fine diamond for the finest polished edge of al bonded diamond abrasives
- 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
Tools and Hardware Reviews of DMT A4EE 4-Inch Diamond Whetstone for use with Aligner Extra-Extra Fine
Customer Review: Works good and pretty fast
Summary: 4 Stars
This is a must have if you want to put a close to sharp edge on a knife using the aligner kit that this works with. It will put an edge on a knife suitable for all but the pickiest, the professional, or the fanatical.
Update 11-5-10
I may have found a significant flaw in using diamond stones to sharpen knives and tools. I am not an expert at this, and I have not seen this mentioned anywhere else, so take it with a grain of salt.
The edge of the knives that I have been sharpening, while sharp, do not hold that sharp edge very long.
First, no matter how well you sharpen an edge, it is not perfect. The edge has little microscopic teeth on it. Similar to a saw. These `teeth' on a knife are not uniform in size, shape, and spacing, as on a saw. Nor are they rigid as on a saw. On a knife, when you cut something, these weak little teeth bend this way or that way, and the knife begins to feel dull.
My theory:
Those little bits of diamond grit on a diamond stone are, as you know, very, very hard. They cut very fast. They also cut very deep. They make deeper little grooves, on the beveled edge, than any other type of sharpening stone. These deeper grooves make larger teeth on the edge of the knife. A larger tooth is inherently weaker, and will bend more easily. Also, without going into great detail, the deeper grooves cause each little tooth to have less physical support, making them weaker still. They will bend even more easily.
No matter what you use to sharpen an edge, those little teeth are created. They are always present. It appears to me that a diamond grit stone causes weaker teeth that bend more easily. The result is that the edge does not stay sharp as long as when other sharpening materials are used.
More comment:
Because diamond stones sharpen so fast and so easily, I still like them, and will still use them. I may try to find some other sharpening stone to use as a final sharpening step, to put a more `finished' edge on a knife.
Description of DMT A4EE 4-Inch Diamond Whetstone for use with Aligner Extra-Extra Fine
ATTRIBUTES Grit: Extra Extra Fine Material: Diamond Size: 4 in. Special Features: For Aligner Type: WhetstoneSharpening Stones Tools
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