I do not use my Kate Wolf belt sander all that often, but when I
need it it is hanging on the end of my bench, and only takes seconds
to drop it into the GRS using the adaptor it came with, and to snap
the end of shaft of either one of my Foredom into it. It does not
require a handpiece, as the flex shaft snaps directly into it.
Like many of my tools, including the extra GRS accessories that are
not in use, it hangs on a piece of PVC screwed on the end of the
bench where Ican grab i without even looking.
As for lack of belt adjustment, mine has a third, center "wheel"
that adjusts the belt tension.
As with her other tools, it is a well thought out, well built, and
easy to use tool. I also own her drill press that fits the #30
Foredom handpiece, as well as her adjustable trimming table that
also fits the #30 handpiece and the GRS BenchMate system.