Hi. Quick question from a beginner.

I have created a silver dome. Cut a slit in it and soldered a semi circle and silver ball through it. I now have visible excess solder in the base of the dome.

How would I remove this. I have tried with various grades of sand paper and a bristle brush with tripoli using a Dremel. I think I need something quite pointed?

It is quite a fiddly space. Any other suggestions? Thanks


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