The blade of the sword is full tang and totally hand forged using the ancient method of sword making. It can easily cut bamboo with a strike. AISI 1095 Carbon is a kind of high carbon steel, very hard and high flexibility. It is one of the best carbon which is used to make Japanese sword so far. very balanced in price and quality, hardness and flexibility. the test video you saw above is made by this kind of production. Swords made by 1095 steel is absolutely the best practical and functional production at thes price. Furthermore, the blade was hand abrasived by multiple grade abrasive stone, totally according to the ancient process, then it goes through over 12 steps hand sharpening.
Kamado Tanjirou 2