Japanese Natural Whetstone Shohonyama Yaginoshima Asagi 1267g from Kyoto Japan

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  • Availability:  In Stock
  • Product Code:  Yaginoshima Asagi 1267g

   


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Description

This is a Kyoto sized Shohonyama Yaginoshima Asagi for finishing your knives and carpentry tools. Medium hardness, cutlery can be sharpened stably, a good blade can be made.

Yaginoshima is a mine located east of Ohira, north of Kuzaki, under the control of Akechi Mitsuhide, who overthrew the famous first ruler of all Japan, Oda Nobunaga. The stones were supplied to various woodcutters and sword polishers in his area. Suita from Yaginoshima is the most famous (along with various namits), it has strong cutting ability and smooth texture. This mine has been closed for a long time.

Dimensions: 25-75mm × 200-211mm × 30-34mm (approx.)

Weight: 1267g

Grain size: 8000

Nagura is unnecessary, but using it will definitely speed up the process!

Excellent finishing stone for knives and tools.

Hardness: 4.0

Stone color - Asagi

The grain size of Japanese lapping stones is quite relative, in any case it is thinner than synthetic stone # 8000. This will give the famous Kasumi coating (cloudy) and prolong the life of the blade. Finish sharpening is done on natural stones, and a smooth, sharp cutting edge is obtained. Japanese natural stones have such properties, because the quality is influenced not by the size of the abrasive particles, but by the shape. This is confirmed by a study by the University of Tokyo. SiO2 abrasive particles are in the form of rounded flakes. They do not abrade, but remove steel like sod, especially on suspension. Thus, not enough steel is removed, but the steel is also removed in such a way that an even jagged edge is not formed, which would be when sharpening on artificial stones.

Using natural stones will allow you to cut finer and at the same time extend the life of the edge. There is a good reason for this. In synthetic stones, the sharpening particles are equal in size, while in natural ones they are not. Consequently, a blade sharpened from synthetic stone will have an even height of serrated teeth, so once those teeth become dull, it will stop cutting completely, but ... when the height is different ... I think you understand my point. It's like shark teeth. They don't break right away.

Also, a natural stone sharpening has a hardening effect on the edge of the blade. This has been scientifically proven by the HRC testing machine, an experiment carried out by the renowned blacksmith Usui Kengo. In fact, the hardness was higher after polishing with a thin natural stone. As you can see, the point is not only in the achieved sharpness of natural stones. After you use natural stones, you will not want to switch to artificial ones.

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