Wiki-Honbazuke

New knives are intentionally made with an obtuse angle on the blade to prevent chipping. Therefore, the sharpness of the blade is not so good. The process of reshaping the blade to achieve the original sharpness is called Honbazuke.

A highly skilled craftsman will perform the main blade attachment, so you can use the knife immediately from the day you receive it.

Related websites
Honbazuke: What is Honbazuke method? ”The knife is not yet finished." – KIREAJI