Quoted from Jason_Jehosaphat:https://www.pinballlife.com/index.php?p=product&id=1837
Above is a link to a "magnet core plug."
This is apparently the portion of a magnet assembly that gets dimpled.
Can this plug be dressed? As in, can the dimpled top be filed down slightly until it's flat/smooth again? It looks to be solid steel.
Thanks.
Yes, done it many times. Note that if dimpled over to much it can be a Bear to remove from the disk if its a new style magnet as Stern uses today. I simply hold it in a vise and slowly work it flush again with a single cut file. Not really tough. Good Luck.