What is Shinogi-Suji(鎬筋) ?
- Shinogi-Suji means a ridgeline dividing SHINOGI-JI(鎬地) and HIRA-JI(平地).
- The height of the ridgeline makes a great difference in a blade’s cutting ability. A sword with a higher ridgeline can cut harder materials. On the contrary, a sword with a lower ridgeline is more suitable for cutting softer material.