Is a full-tang construction important in a display katana?

 Updated Feb 2026

Yes, full-tang construction is one of the most important structural indicators of quality in a collectible katana. In a full-tang blade, the steel extends the entire length of the handle (tsuka), meaning the tang is pinned through the handle with a mekugi peg — exactly as historically produced swords were assembled. This construction method ensures the handle stays firmly seated through decades of display and occasional handling without loosening. Katana with partial or rat-tail tangs are more susceptible to handle wobble over time, which can also affect how the tsuba and habaki fit. For collectors, full-tang construction signals that a piece was built to historical specification rather than as a purely cosmetic reproduction.

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