It is important to note that all DMT diamond products are manufactured to the same high standard using the same high-quality micronized monocrystalline diamond that makes sharpening with DMT products consistently reliable and superior. Therefore, the difference between the two diamond product lines becomes a matter of preference to the user.
The Diamond Whetstone™ and DuoSharp® lines: These products carry our signature polka dot pattern surfaces. The polka dots are slightly recessed so that when you are sharpening the small amount of material (swarf) that is being removed will fall into the polka dots and remain out of the way of the sharpening surface, making your sharpening work quick and easy.
The DiaSharp® line: These products have a continuous diamond surface, which makes them perfect for small-pointed tools as well as your other sharpening needs. They are constructed of solid steel, which makes them heavier than our engineered-resin Diamond Whetstone™ and DuoSharp® lines.
When compared with conventional sharpening stones, all DMT products work faster and sharpen quickly using light pressure and rest assured that your DMT stone remains flat!