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8" DMT DuoSharp Bench Stone

8" DMT DuoSharp Bench Stone

Item # W8DUO

Fine/Coarse - $120.59 $89.99 (Save 25%)
In Stock
Fine/Coarse with Base - $130.59 $99.99 (Save 23%)
In Stock
Coarse/Extra Coarse - $120.59 $89.99 (Save 25%)
In Stock
Coarse/Extra Coarse with Base - $130.59 $99.99 (Save 23%)
In Stock
Extra Fine/Fine - $120.59 $89.99 (Save 25%)
In Stock
Extra Fine/Fine with Base - $130.59 $99.99 (Save 23%)
In Stock
Extra Fine/Coarse - $120.59 $89.99 (Save 25%)
In Stock
Extra Fine/Coarse with Base - $130.59 $99.99 (Save 23%)
In Stock
  • Save $30.60 off the List Price
  • Add a Base for $10 ($16.99 separately)



The overall size of the DMT® 8" DuoSharp® is very generous at 8" long and 2 3/8" wide. The length is long enough to ensure long strokes of your tool or knife and the width is wide enough for even larger plane blades. And because this stone is double-sided (choose from fine/extra fine fine/coarse, or coarse/extra coarse grits), it is more versatile and cost effective.

A non-skid mat is included with every diamond stone.

Available in four different grit combinations: Fine/Coarse Grit, Coarse/Extra Coarse Grit Extra Fine/Fine Grit and Extra Fine/Coarse Grit. Made in the USA.


The DMT® 8" DuoSharp® Plus is a great combination of size and value. The 8" diamond stone is ideal for just about any knife or tool. The coarse/fine stone is a great stone to own if you are going to own just one stone. The coarse side can remove nicks from or sharpen very dull knives and tools. The fine side is fine enough for the final edge on kitchen knives or used as an intermediate step before even finer grits. The fine/extra fine stone can be used any time your edge is not damaged or abused. After using the fine grit, the extra fine grit puts an extremely sharp and durable edge on knives and tools. The coarse/extra coarse stone is a great stone to have when you need to sharpen very dull knives and tools because it cuts so fast.

We recommend the 8" DMT® DuoSharp® for woodworking tools, kitchen cutlery, and outdoor knives.

Optional Bench Stone Holder

  • Raises stone off the work surface to make knife sharpening easier
  • No-slip rubber feet keep stone in place during sharpening
  • Handle on bottom allows you to move the stone to the blade for when sharpening axes or large, heavy blades

DMT Color Coded System Key

DMT Item Numbers:
Extra-Fine/Fine without base: W8EFNB, with base: W8EF-WB
Fine/Coarse without base: W8FCNB, with base: W8FC-WB
Coarse/Extra-Coarse without base: W8CXNB, with base: W8CX-WB
Extra-Fine/Coarse without base: W8ECNB, with base, W8EC-WB

Need more information?

Call a Product Specialist

Monday through Friday, 8 a.m. - 4:30 p.m.
Phone US: 1-800-351-8234
Outside US: +1-608-203-1129

Email a Product Specialist
Emails are answered Monday through Friday
Thanks John, I am so glad to be working with people who know their products and how to use them. You have a very informative and well laid out website and I learned a lot. It was a rainy Sunday and I watched every video and read through each article. The information you provided was very helpful in teaching technique and helping me decide what to buy. Also your products are so well thought out, that no matter what stone you prefer (oil, water or diamond), there is a nice package available for a beginner. All of the products you put together each had their own advantages and believe me, each one spent some time in the shopping cart until I made my final decision.
Randy Q, New York, NY