Fan blades
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.
and keyways.