Thrumming to Polish Hard to Reach Areas

Here is a polishing tip from @lucywalkerjewellery - “A really handy technique for polishing those hard to reach areas, called thrumming 👍🏻😍” I asked Lucy what type of string she is using here and she told me thick embroidery thread, but you can also use cotton cord, or kite string! The polishing compound here is ZAM. Who uses this technique?!? Tell us how you do it below! #PolishingJewelry #Thrumming #ZamPolishing #jeweler