With a wire thickness of over 2mm these super heavy weight 12 gauge copper rings hold up to our heaviest chain designs. Our heavy duty copper jump rings have an inside diameter of 8mm and an outside diameter of about 12mm.

12 AWG Copper Jump Rings

Inside Diameter: 8mm (5/16 of an inch)

Outside Diameter: approximately 12mm

Wire Thickness: 2mm (0.08 inches) 12 AWG

Metal: solid red copper (nickel, cadmium, lead free)

Country of origin: USA

These small, copper finishing rings make an excellent choice for bold heavy weight chain designs and other copper jewelry projects.

Listing is for a package of ten rings total. All of our finishing rings are made from pure, solid, raw, red copper.