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TierraCast Medium Oval Jump Rings
3x4mm ID - 20 Gauge - Plated Brass
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TierraCast Medium Oval Jump Rings are made with 20 gauge (0.80mm) wire and have an inside dimension (ID) of 2.7 x 4.2mm. These are sawcut plated brass open jump rings.
Use these jump rings to attach charms, pendants or clasps on your next jewelry project or link them together to make a small chain. The oval shape has some advantages when compared to the traditional round jump rings. They are better in defining the location of your pendant or charm because they cannot move freely because of their shape. They also provide a slimmer look if you are chaining them together.
TierraCast is a USA based company that specializes in quality pewter cast components for the jewelry making industry. The TierraCast product line provides affordable, quality components that compliment a wide range of jewelry and beadwork.
- Open Oval Jump Rings
- Plated Brass
- 20 Gauge
- Ring Size ID: 2.7 x 4.2mm
- Ring Size OD: 4.3 x 5.8mm
Gauge - GA - AWG - this is the thickness of the wire. Most jump rings are manufactured using standard wire that is measured in gauges. We list our wire and jump rings using the AWG or American Wire Gauge system.
ID - inside diameter - measurement of the closed jump ring from inside edge to inside edge across the center.
OD - outside diameter - measurement of the closed jump ring from the outside edge to outside edge across the center.
AR - Aspect Ratio - specific to chainmail designs measures the inside diameter (ID) of the jump ring by the thickness (Gauge) of the wire or AR = ID / GA. This is a guideline measurement to determine whether a certain size jump ring will work with the weave you plan to use.
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