About This Item
Takashima Myokakudani Karasu Hard Type Japanese Natural Sharpening Stone 1300g (2lb 14oz.)
213mmx80mmx25-31mm ***Some of edge portions of the sharpening surface are not flat, but the most of main sharpening surface is flat. The sharpening surface is very unusual color black, but the most of the rest of stone look different color by checking from the side of the stone and the bottom of the stone. I really do not know what kind of color or sharpening effect in the middle of the stone, but I do not see the lines from the side faces, so it should be no problem for sharpening**** The most of Takashima are softer and little rougher than the fine grit whetstones like Nakayama, however this one is hard type of Takashima, so it is kind of hard hone in the fine grit.
It raises very good amount of black slurry quickly, and it has smooth sharpening surface, but the edge portions are not flat, so we have to watch the sharpening the lower portion.
(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)
(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 bright color silver color, Hagane to semi-mirror finish or mirror finish.
Takashima whetstone has been approximately 200 years of history. It is shipped from Takashima harbor to Otsu. It is very similar looks and quality with Nakayama, so it has been used by craftsmen who sharpen Knife at Sakai. Most of Takashima whetstones are little bit softer than comparing with hard Kyoto fine grit finishing natural whetstones like Nakayama or Ozuku, so it is great whetstone before using those hard fine grit whetstones. It is great whetstone to delete scratches on blade after processed medium grit whetstone, because Takashima includes very low amount of unwanted particles in natural whetstone. Takashima is one of great natural whetstone to get into a natural whetstone beginner; however, Takashima is great whetstone for an expert, because it has lots of variety. It is still mined by one over 70 years old person (it might be closed now, because he does not go the mine anymore) and it had been mined lots of quantity about 80 to 100 years ago.