does anyone know if the accessory mounting jaws from axminster chucks can be
used with a oneway.

I doubt either oneway or axminster make these saw sets themselves

I would like to get a set of jaws for gripping metal but oneway doesn't
supply anything (and I'm kickin the **** out of my stronghold jaws) where as
axminster sells a set of internal and external jaws that look similar in
size to oneway.