What is Katana Ate Kizuchi in Japanese Katana terminology?

"刀当て木槌" (Katana Ate Kizuchi) is a tool used when trying to remove the blade of a sword that is tightly fitted into the handle (Tsuka). The tool works by placing a block of wood against the handle and then hitting this block with a wooden mallet, which helps to remove the blade. This method ensures that the blade is removed safely without causing any damage.