Natural Yamashiro famous rough Nakayama Made in Seihonyama finished forged made in with 60 size fake original fake Honzan epidemic prevention

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Intermediate to high quality grade whetstones produced in Iyo Province and Seihonzan Yamashiro Province, with inscriptions written by hand by the miners themselves as a measure against counterfeiting and imitations. Put the training as shown in the image in the margin and seal it. Assortment of raw stones for training Yamashiro Kunisumi's signature whetstone craftsmanship. A box that will help you develop an eye for spotting falsified production areas. There is one each of Iyo and Tamba, but the names are not written on them, so please touch them yourself and judge based on their physical properties. For avant-garde people, including competitive and training elements. Comes in a 60 size box. External dimensions of the box (approximate dimensions): 26 x 20 x 13cm Extraordinarily large and high quality rough stone. Zero highly requested gacha elements. You will receive the raw stone as shown in the photo. I hope it's polished and flat. One from Iyo Province is used for finishing polishing and Nagura, and one from Tanba Province is for checking the difference in quality and physical properties that cannot be trained. In the past, in the industry, the ratio was 1:10 for Umegahata, Ukyo Ward, Yamashiro Province: Tanba Province. Siliceous slate from Umegahata, Ukyo Ward, Kyoto City, Yamashiro Province #6,000~24,000 grade The harder it is, the more practice it will require, but the higher the chance of fineness. Because of the round bottom continuous striations, it has a long cutting time of about 70% threshold, and the artificial grinding wheel grain size ratio makes it difficult to create a tasteless mirror-like surface, making it easy to bring out contrasts derived from differences in forge tangents, materials, and carbon content. The blacker the stone, the harder and finer the stone tends to be. If it is hard, it will lose its self-sharpening ability, so depending on your purpose and level of skill, sharpen it while doing Kyonakuragake each time. Locally produced Sokojikara! ! The size of the box is about 26 x 20 x 13 cm (Delivery 60 size). The weight is the packaging weight. Please use this as a reference for size comparison. Since the single piece is clear, it has excellent workability and yield when dividing into small pieces. Please try out the imposition and cutting work yourself and see the difference in the properties and performance of the whetstones. It comes in various types, sizes and shapes. If you have a stone that is large enough for the knife you are sharpening, attach the side to it. If it is not, you can break it up into small pieces and use it in the same way as for sword polishing. It consists of only the easternmost first class deposit in Ukyo Ward, Kyoto City + a comparative sample. What is Umegahata whetstone? From Umegahata Mukonoji-cho, known for Nakayama and Benizan, through Okudono-cho, the king of the Suita layer, it is only Shobudani, famous as the birthplace of Kyoto whetstone. You can tell if it's genuine by the way it cracks, not by the fact that it's less than average and bulky. This is such a set. Regarding the stone forging, it was mainly trained by trainees under the supervision of a person with over 15 years of experience in Yamamoto-ryu training, but I believe that the stone was skillfully divided, sorted, and made into many colorful items, so please take a look at the pictures. Please try splitting it yourself and see how the vast differences in physical properties and even the color saturation stand out. (Be prepared with a flat-head screwdriver, hammer, safety glasses, gloves, etc.) You'll be lucky if you have one soft red pin. (Sorry for the lot dependence) A flat, film-like flake-like slurry easily springs up from this ore. The directional grinding grains are arranged on the flakes, and the grinding ability is surprisingly strong. Under specifications that reduce water injection, the particle size increases as the flakes are crushed. The slip between the flakes is caused by the sticky crushed slurry of feldspar and mica minerals that acts as a lubricant, giving a light sliding feel. If you look at history. Wet kelp was spread over the ground and the heavy stone walls of Osaka Castle were slid over and pulled. The idea is to replace the kelp with crushed flakes. If there are too many flakes that cannot be crushed and too much surface pressure is applied during sharpening, the overlapping parts of the flakes and the strong grinding ability derived from Kuni Yamashiro make it easy to post-process, but it is enough to create shallow shrinkage scratches on the soft base metal. By adjusting the force, sharpening angle, amount of slurry, and degree of water injection, the appearance of these shallow shrinkage scratches can be greatly improved. It is recommended because it is easy to obtain a self-evaluation of skill development from visual inspection of the results. In the early stages of becoming an expert flake user, you will probably find that the aforementioned kelp attack is very helpful against things that you have not trained enough or those that are hard, hard, and tense from other countries. You may find the energy to try again on a difficult, unruly horse that you have given up on or shelved. In the first place, it is the job of a master whetstone to ignore the thickness and pull out the burrs that become violent during forging. . . . In the market, there is a tendency for the profit margin to be large due to shoddy manufacturing where the thickness and size are just, so there is a high probability that there will be an opportunity to use the soft red pin slurry.