I have no argument regarding strength or ease of conversion for use with a raw shaft.

My thoughts were that any knife used in the manner of a stabbing spear could then be returned to its orignal configuration for regular knife tasks. If I owned such a knife, I would make a walking stick with matching threads (Preferably metal or fiberglass threading.) that could be capped to cover and protect the threads on the stick.

Since common sense (At least to those of us on these types of forums.) dictates that you never throw away your strongest weapon ("Asset", for the sheepls.), a soft blade is not that important since you will be controlling the blade mostly in a thrusting manner and not a slashing manner.

The deep threads that the knife had in the handle would better serve to retain the knife on the shaft from the forces of torque if the shaft to knife fit was not perfectly tight.

Do you know why the Romans had a multi wood shaft bundled spear with a thin bendable shaft with spear point protruding from the bundle and one of the primary ways it was used?

Bountyhunter