When forging is complete, the steel is not quenched in the conventional European fashion (uniformly throughout the blade).To maximize both the cutting edge and the resilience of the sword spine, a technique of differential heat-treatment is used. The sword is painted with layers of clay before heating, providing a thin layer or none at all on the edge of the sword, ensuring quick cooling to maximize the hardening for the edge. A thicker layer of clay is applied to the rest of the blade, causing slower cooling. This creates softer, more resilient steel, allowing the blade to absorb shock without breaking.




Engraving
We can engrave English words, Chinese Characters on the blade for free.

By paying additional $20, we can engrave a pattern or Japanese words for you.

Hamon
We can add or remove the machine-made wavy hamon for free.

Bo-hi ( Blood Groove)
Usually thought be used for bloodletting only. It is also used to lighten the weight of the sword. We can add or remove Bo-hi for free

Sharpness
Most of our blades are sharp. We can also make the blade unsharpened for free if you require.
Colored Blade
If you want to change to a different color blade, please contact us before purchase.

Matching Swords Set
If you buy one katana, we can make a matching Wakizashi or Tanto for you. The price varies from different swords. Please contact us if you need make custom matching set.


