Sanmai Blade
What is a Sanmai Blade?
Sanmai (三枚) refers to a traditional Japanese sword construction method in which the blade is made from three layers of steel. This technique combines a hard steel core for sharpness with softer steel sides for durability and resilience.
A Sanmai blade embodies the harmony of strength and flexibility. It is forged by sandwiching a sharp hard steel core between two softer layers—resulting in a blade that is both razor-sharp and battle-ready. This construction showcases the practical genius of traditional Japanese swordsmithing.