Are DMT sharpeners good?
In addition to the value that DMT Diamond’s longevity can offer, DMT Diamond sharpeners can simply outperform conventional sharpeners by the following advantages: FAST – The ultra-hard DMT Diamond surface is the most efficient sharpening surface, shedding precious time from your sharpening duties.
How long do DMT sharpeners last?
If you use your sharpener to sharpen your kitchen knives every so often, chances are your sharpener will last ten or more years. Some of our customers report their DMT® sharpeners are still performing after twenty years of service!

How flat are DMT Dia sharp stones?
Dia-Sharp stones have an exceptionally dense, and evenly distributed coating of micronized-monocrystaline diamonds, resin bonded to a nickel-coated solid-steel plate. DMT precision grinds the steel to within +/- . 001 flatness so you can flatten plane irons, and chisels with confidence.
Where are DMT sharpening stones made?
Marlborough, Massachusetts
DMT® continues to be an entirely ‘Made in the USA’ company with all products manufactured in the company’s facility in Marlborough, Massachusetts and distributed throughout the world.
Do DMT sharpening stones wear out?
For those that use stones on a daily basis and maintain them properly, the diamond will likely last years. For those that use them regularly, it’s likely the stone will last from ten to twenty years. It is more common for stones to require a cleaning than to be worn out.

What Grit is a DMT red stone?
Dmt Extra Fine/Fine Grade Diamond Double Sided Sharpening Stone, 9/25 Grit Green/Red FWEF – 1 Each
Brand | DMT (Diamond Machining Technology) |
---|---|
Color | Green,Red |
Item Dimensions LxWxH | 10.7 x 3.7 x 0.9 inches |
Item Weight | 1 Pounds |
Grit Type | Extra Fine, Fine |
What grit is DMT red?
9/25 Grit
Dmt Extra Fine/Fine Grade Diamond Double Sided Sharpening Stone, 9/25 Grit Green/Red FWEF – 1 Each.
How long does a DMT stone last?
ten to twenty years
For those that use stones on a daily basis and maintain them properly, the diamond will likely last years. For those that use them regularly, it’s likely the stone will last from ten to twenty years. It is more common for stones to require a cleaning than to be worn out.
What grit is a DMT red stone?
What grit is DMT blue?
325 Grit
Technical Details
Manufacturer | DMT |
---|---|
Size | Plastic Case Blue 325 Grit Coarse |
Color | Silver/Black |
Style | Coarse |
Material | Synthetic |