No way, it is still there. I tryed everything except the first tip that applies for spade drill.
I don’t know if heating and throwing in cold water shattered it – I repeated the process 3 times… I don’t have the rodico so I tryed to get it out poking and wiggling with a thin wire and then holding the arbor with a plier and hitting the plier (not the arbor) on a steel block so the inertia would make it come out. No success.
(If nothing works I will try to place the pivot in the remaining not so deep hole and hope it will stay there.)