I have quite a few power tools with orifices intended to take a dust
extraction hose; and I'd like to attach them to my vacuum cleaner.
However, all the tools, and the vacuum cleaner pipe seem to be of
different diameters - none will mate up.

I find this particularly odd considering the vacuum cleaner, orbital
sander and electric plane are all badged Wickes - I asked at the store
about this, and was greeted with shrugged shoulders. (They started off
by claiming that the orifices weren't intended for dust extraction until
I fished out an instruction manual. God, it was like being at B&Q!)

So can you buy a gizmo anywhere, or set of gizmos, which will connect my
hoover outlet to the tools?

Thanks
David