My current repair has aluminum tuner buttons on brass shafts. I have another antique that has aluminum on steel shaft. Seems to be common on antiques.
I’m assuming that the buttons are cast directly on the shafts and do not remove, and that they are what we’d call un-alloyed aluminum, not pewter or some other alloy. Anybody know?
I’m asking because there is going to be some heat involved and I’d rather not melt the button.
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