DMT DuoSharp Sharpening Stone

Retail Price: $103.18
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  • DuoSharp®plus™ 8" double-sided 1200/600 extra fine/fine grit stone with base

  • Excellent for sharpening a variety of knives and edges plus a continuous diamond zone for small and pointed tools

  • Sharpens knives faster than conventional stones with DMT's monocrystalline diamond surface
  • Two sided sharpening with fine for a razor sharp edge and extra-fine to polish and refine an edge
  • Durable construction will provide-years of consistent performance and reliable service
  • The stone measures 8" x 2-5/8"
  • No oil is needed-sharpen dry or with water
  • Use it dry or with water


Usually ships within 2 weeks.

Ship To Cost + Another Item
Continental United States $7.95 $7.95

Return policy

We accept returns for up to 14 days from the date the order was delivered.

This is important. The Number One problem in home kitchens is dull knives. I don’t care how many copper core All-Clad pans, Le Creuset Dutch ovens or Benriner mandolins you have, cooking is going to be hard for you if your knife is dull. Again: the biggest handicap home cooks have is dull knives.

Believe it or not, I’ve always been terrible at sharpening knives. Yes, me, Mr. From Scratch—couldn’t sharpen a knife to save my life. So I found a terrific wet grind service downtown, and was happy to pay 3 to 5 bucks per knife twice a year. Expensive and a pain, but the knives were sharp as lightening. But what I recently learned was that I wasn't crappy, my stone was.

I found a fabulous, fabulous tool for sharpening knives. Honestly. I’m floored. The one for kitchen cutlery is called the DuoSharp and made by DMT in Marlborough, MA. It licenses an old patent that uses a polka dot pattern of nickel-coated steel dusted with microcrystalline diamond, specially made for this company in a uniform size. The even size and the interrupted pattern (the polka dots) make sharpening a breeze, six swipes on the fine side and six on the extra fine side, and your knife will slice through a limp sheet of paper or an over ripe tomato as if it were a straight razor.

All of cooking becomes a pleasure when your knives work. Sharp knives are safe knives—you don’t have to push it which causes it to slip off food and cut you; dull knives make ugly cuts, in food and on hands. Sharp knives are safe knives. Sharp knives make cooking easier. For me, this tool is a godsend.


I bought this about a year ago and am still very pleased with the outcome. No more need to go to the knife sharpener - I can do it myself at a greatly reduced price. Yeah!

Don't forget to sharpen your carving knives for the holidays.

I'm not a gadget person....all I want is a good knife and a cutting board:)

Never could sharpen a knife correctly. This is perfect.