a small metal saw (dunno what the English name is)
A piercing saw is probably what's needed, although there probably aren't enough long cuts involved in making filigree lugs to make it worthwhile over just drilling and filing.
Thanks.
@Hulsroy started
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A piercing saw is probably what's needed, although there probably aren't enough long cuts involved in making filigree lugs to make it worthwhile over just drilling and filing.