Wiki-Handle
It is the name of a part of a kitchen knife and refers to the bar-shaped handle provided for holding the knife. The way of attachment and form differ between Japanese and Western kitchen knives. Japanese kitchen knives are attached to a wooden handle by inserting the core of the knife into the handle. The handle of a Japanese knife is easily removable for easy repair.
Related websites
Japanese Knife Handles Guide | KIREAJI
Essential Japanese Knife Care Tips for Durability | KIREAJI