The Okuden collection is specifically designed for the Japanese swordsmanship student. The T10 or 1095 steel blade is differentially hardened and shows a real (non-chemically enhanced) hamon. These swords are traditionally polished up to the uchigumori stage to save the costs of the shiage polish (the cosmetic finishing polish). This process is very expensive while not adding additional practical value. During the shiage polish many hours are spent in whitening the hamon and enhancing the steel details.
Swords from the Okuden collection are the perfect choice for advanced students of the Japanese swordsmanship arts and suitable for iai (sword drawing techniques) as well as tameshigiri (cutting practice).