Derek Cohen (in Perth, Australia)
Hi Jeremy

The name for your blade is Kiridashi. Quite commonly, these are used without a handle. I have a couple like this, and find them easier this way since they can lie flat on the work surface ...

Your idea of hollowing out one side of a wooden blade, inserting the blade, and then epoxying the two sides together will work. I have done this as well.

If you have a lathe, this is my preferred method ....

Shape a handle you like. Grind the rear of the kiridashi into a tang. Drill the handle, and secure the tang in this with epoxy ...

I infilled the hole at the end of the handle with a piece of brass rod ...

Regards from Perth

Derek