Wire Gauge Reference Guide
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Wire Gauge Diameter in Millimeters What It's Good For Making:
14 ga 1.65 mm
  • clasps
  • thick jump rings
  • chain maille jewellery
  • neck rings
  • bangle bracelets
  • substantial formed links
  • eye pins for beads with very large holes
16 ga 1.3 mm
  • clasps
  • thick jump rings
  • chain maille jewellery
  • neck rings
  • bangle bracelets
  • substantial formed links
  • eye pins for beads with large holes
18 ga 1.0 mm
  • more delicate clasps
  • jump rings
  • formed links
  • eye pins, head pins
  • wire-wrapping
  • ear-wires (though 20 gauge is more common)
  • fits through most bead holes
20 ga 0.8 mm
  • jump rings
  • delicate formed links
  • eye pins
  • head pins
  • wire-wrapped links
  • split-rings
  • earwires
  • fits through most bead holes
21 ga 0.75 mm
  • many people buy this odd size gauge specifically for making earwires
22 ga 0.65 mm
  • wire-wrapping
  • wire-wrapped head-pins
  • wire-wrapped eye-pins
  • fits through almost all bead holes
24 ga 0.5 mm
  • standard size for wire-wrapped bead links and head pins
  • wire-wrapping
  • fits through all but the smallest bead holes. Semi-precious gemstone beads and pearls often have smaller holes than other beads. This gauge fits through almost all of these.
26 ga 0.4 mm
  • for wire crochet
  • wire-wrapped bead links and head pins
  • wire-wrapping
  • fits through all but the smallest bead holes. Semi-precious gemstone beads and pearls often have smaller holes than other beads. This gauge should fit through all of these.
28 ga 0.32 mm
  • for wire crochet
  • wire-wrapping
  • wire-weaving.

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