A ring roller designed to enlarge rings can be used to tighten
stones in a channel set wedding band. Select a half-round die
larger than the width of the band; making certain the die will
contact the tops of the channel without hitting the stones. Apply
gentle pressure and roll across the entire channel, compressing the
metal down tight onto the stones. Then, remove the ring and check
the stones. Repeat as necessary. DO NOT Over Tighten The Die
Against The Ring. This process will leave the channel smooth and
even. Brad Simon CMBJ