The level 7 extra fine grit is the first level of grit where we feel it is starting to polish the edge. This grit is unsuitable for heavy-duty sharpening as it is just too fine for that type of work.
Grit: 1000 - 2000 Grit
Particle Size: 8 - 15 Micron
Sharpening Stone Grit Chart
For Woodworking Tools and Hard Steel Knives This line of Traditional Water Stones from Naniwa is developed specifically for hard steels of the ty...