
Ohira Awasedo Japanese Natural Sharpening Stone 890g (1lb. 15.3oz.)
Ohira Awasedo Japanese Natural Sharpening Stone 890g (1lb. 15.3oz.) 197mmX68mmX23-24mm, around #4000 grit; Middle range fine grit stone for high carbon cooking knife or Japanese plane or chisel ***On the sharpening surface, lots of reddish dots like Ohira Renge Suita. It is from Ohira mine, so it might happen.*** Hardness------- 8.7 It raises very good amount of black color slurry quickly. It is not too hard not too soft. (Scale; 1 to 10, 1-3 is very soft muddy rough grit whetstone 3-6 is soft medium grit whetstone, 6-8 is hard medium grit whetstone, 8-10 is fine grit whetstone) Particle Size------ 8.6 (Scale; 1 to 10, 1-3 give deep scratch marks to the steel, 3-5 is delete the 1-3 scratches, 5-8 makes the steel cloudy, 8-10 makes the steel semi-mirror finish or mirror finish) It makes my blue II steel blade knife Jigane to light frosted silver color, and Hagane became semi-mirror finish. It should be great stone to finish for high carbon steel blade. It is from direct from Ohira