

For those who prefer a continuous diamond surface; especially for sharpening small or pointed tools; these bench stones outperform them all. Extra Extra FineDMT uses micronized monocrystalline diamonds bonded to a substrate in giving a consistent grit size and coverage across the stone, this process ensures a long lasting performance. Rather than going up in numbers for the finer stones, they refer to the size of the diamonds in Microns.Extra-Extra Fine - Provides the finest grade micronized bonded diamond abrasive available anywhere for the ultimate edge refinement, achieving quick stock removal with millions of diamond cutting edges.Colour code: Tan. Diamond size: 3 micron (8000 mesh).