Most pictures of naginata I've seen fit the tang inside the shaft.
European spears and polearms have the blade fit over a tapered end.
In the first picture, the naginata is mounted inside and secured with a mekugi(peg).
I've made handles where I split the stock in half to work on the inside.
How would I work this other than splitting the wood all the way down then gluing back together?

European spears and polearms have the blade fit over a tapered end.

In the first picture, the naginata is mounted inside and secured with a mekugi(peg).
I've made handles where I split the stock in half to work on the inside.
How would I work this other than splitting the wood all the way down then gluing back together?