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💎 Sharpen smarter, not harder — own the edge everyone envies!
The DMT D8X 8-Inch Dia-Sharp Continuous Diamond Extra-Coarse stone delivers ultra-fast sharpening with its premium monocrystalline diamond surface. Designed for heavy material removal, it handles everything from large knives to fine tools without oil—just water or dry use. Durable and efficient, it’s the go-to choice for professionals and enthusiasts seeking rapid edge restoration and long-lasting performance.

















| ASIN | B001DZOKNY |
| Best Sellers Rank | 98,108 in DIY & Tools ( See Top 100 in DIY & Tools ) 74 in Sharpening Stones |
| Brand | DMT |
| Brand Name | DMT |
| Colour | Grey |
| Country Of Origin | USA |
| Customer Reviews | 4.6 out of 5 stars 401 Reviews |
| Global Trade Identification Number | 00017042007607 |
| Grit Type | Extra Coarse |
| Grit type | Extra Coarse |
| Included Components | 1 x 8-Inch Dia-Sharp Continuous Diamond Extra-Coarse |
| Item Dimensions L x W x H | 35.6L x 16.5W x 8.9H centimetres |
| Item Type Name | Knife Sharpener |
| Item Weight | 2.2 Pounds |
| Item weight | 2.2 Pounds |
| Manufacturer | Acme United Corporation |
| Manufacturer Part Number | D8X |
| Manufacturer Warranty Description | Guarantee – you acquire from dmt with purchase of our products in europe also a promise without restriction of your legal warranty rights. If your dmt product fails to perform due to defects in material or workmanship, we will replace it 25 years after purchase free of charge. Normal wear, improper cleaning or misuse is not covered by the warranty. Defective products will be repaired, replaced or … |
| Material | Diamond |
| Material Type | Diamond |
| Model Number | D8X |
| Number of Items | 1 |
| Product dimensions | 35.6L x 16.5W x 8.9H centimetres |
| UPC | 017042007607 784497081390 |
| Unit Count | 1.0 count |
M**E
Good solid diamond stone, fast shaping or flatten your japanese water stones
Good solid diamond stone that took a lot of abuse flattening sets of Narex chisels and new plane blades properly so I could keep them sharp on finer stones. Cuts nice and fast and keeps doing it, also great for flattening out your finer grit water stones with.
A**V
This is great. I got this mainly to flatten my Japanese ...
This is great. I got this mainly to flatten my Japanese water stones (double sided rough and medium, plus a 12000 grit honing stone) and it's great for that. I've also used to to dress some plane bodies and it still works great on the stones. Should have bought it years ago as the hassle of using glass and paper have meant I've mostly made do with hollowed stones...
T**R
DMT D8X 8-Inch Dia-Sharp Continuous Diamond 8000 grit extra extra fine
used the 8000 grit extra extra fine a good few times and no problems so far,reports of some failing after little use seem to point to hit and miss quality,puts a nice polish on the edge of knives
A**C
Pretty good.
Good price for DMT extra coarse. If you want to stop using a grinder, this is the diamond plate to buy, provided you also have coarse, fine and super fine plates. Or if you only use carbon & A2 steel blades and want an extra coarse to cut bevels, using oil stone and strop for the rest.
A**R
Wears down to the metal in 10 minutes
I bought the extra course plate as I restore a lot of abused tools. I put a primary bevel on 2 plane irons using light pressure and water to float off the swarf. When I had finished the centre of the plate was worn down to the metal. I get several weeks of use from a cheap plate. I got 10 minutes from this one.
D**O
A valued tool
Liked the thickness of the plate; good for flatening of stones.
O**K
Ich schleife meine Messer seit mehreren Jahren und habe auch Natursteine und andere ausprobiert. Die Besten
DMT sind die Schleifwerkzeuge die ich habe. Sie schleifen sehr effektiv und ganz genau wie man die Messer haben möchte. Bei diesem groben Schleifmittel ist ein großer Abtrag in kürzester Zeit möglich. Um defekte Klingel auf zu arbeiten genau das richtige. Einfach nur Klasse
M**O
Buona
Buona fa il suo lavoro
Y**U
Sert seramik taşlarda ömrü kisa
Düzlük konusunda mükemmel Alüminyum oksit Seramik taş düzelmek için 220 grid aldım aldım. Taşları düzeltme konusunda ilk başta hızlı fakat şert seramik taşları düzeltirken çabuk keskinliğini kaybetti. Tavsiyem 120 grid versiyonu alın yada kullandığınız yumuşak bağlastirici seramik taşlarda kullanın. Ayrıca kesinlik reçine bağlastiriciniz elmas taşlari varsa bu bu elmas plaka ile düzeltmeye kalkmayın elmas plakaniz cöp olur ha Bileme kısmina gelirsek : çok agresif fakat iyi bir seramik taş kadar uzun ömürlü olacağını düşünmüyorum.
D**E
quality item
works well
M**X
Fantastic diamond plate
This is fantastic and removes metal aggressively. It works well when I need to set the bevel or lap the back of my tools. This saves me time and effort compared to sharpening on my previous water stone.
Trustpilot
1 month ago
2 weeks ago