Can a wa knife be yo handled and can a yo handled knife be wa handled or are they built differently ?
Yes, they are constructed differently, but as kaleeb has noted, a conversion can be done, but it is very labor intensive. A Western handled (yo-) knife usually must have the bolster removed and the tang ground down.
A wa-handled knife may be easily rehandled with a Western styled handle, as kaleeb has done here:
It doesn't have a bolster, or a full tang, but captures the style well.
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