If no brass screws available old style drawing pin thumbtack with fine wet n dry paper held on with a bit of looped sellotape and pin in the chuck of a drill. Worked a treat on a couple of mine.
If no brass screws available old style drawing pin thumbtack with fine wet n dry paper held on with a bit of looped sellotape and pin in the chuck of a drill. Worked a treat on a couple of mine.
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