(1)  18k OPEN Jump Ring
  • 20 Gauge
  • OD: 4mm
  • ID: 2.2mm
  • 0.05 DWT (0.08 grams)
Gauge No. Diameter
inches		 Diameter
mm
16 0.051 1.29
18 0.040 1.02
20 0.032 0.81
22 0.025 0.64
24 0.020 0.51
26 0.016 0.41