Removing the Tsuka (Handle) for Cleaning and Inspection
Occasionally, the handle (tsuka) needs to be removed for deeper maintenance, especially to inspect the tang (nakago, 茎) for rust or damage. This process must be done carefully to avoid stressing or cracking the wooden core of the handle.
Steps for Tsuka Removal:
- Prepare the Sword for Disassembly:
- Place the sword on a soft surface, ensuring it won’t roll or be damaged.
- Have a wooden or brass mekugi-nuki (peg remover) on hand.
- Remove the Mekugi (Retaining Pegs):
- Identify the mekugi (small bamboo peg) securing the tsuka to the tang.
- Use a mekugi-nuki to gently push out the peg(s) from the tsuka. Do not use excessive force, as mekugi can become brittle over time.
- Loosen the Tsuka:
- Hold the tsuka firmly and gently tap the kashira (pommel) against the palm of your hand or use a wooden mallet to loosen it. Never pry or force the handle off with tools, as this can crack the wood.
- If the tsuka does not come off easily, lightly tap the nakago-jiri (end of the tang) while supporting the tsuka.
- Remove the Tsuka Slowly:
- Once loosened, carefully slide the tsuka off the tang in a straight motion.
- Be mindful of the small internal wooden seppa (spacers) and tsuba (guard) components.
After removing the handle, inspect the nakago for any rust or damage. If rust is present, gently clean it with a soft cloth and apply a thin layer of choji-abura (clove oil mixed with mineral oil).