There is a serious lack of direction in this thread, at least for anyone out of the loop, and most of the links provided are dead ends...
So what I gathered is that this set
is a PDR set, though it doesn't really look like one to me, at least not the standard PDR Tools I know of
Is this part of a suction cup glue system?
There is no way that set can accommodate for all PDR dents, though I might be wrong.
Someone explain this setup to me, and what each of these tools does, my company does PDR, and I'm sure my PDR guy might be interested.