How many times is a katana folded?
Score: 4.8/5 (10 votes) Folding sword steel, known as shita-kitae, can occur anywhere from 10-20 times. Bladesmiths fold some of the purest blades so many times they have up to a million layers of steel. Folding swords is part of the traditional Japanese katana making process for samurai swords.How ...