In Gauges, the SMALLER the number, the thicker the wire.
The 'LARGER' the number, the thinner the wire.
Keep that in your perfectly twisted memory. :))
MM and gemstone sizes do not work this way. The larger the number, the larger the size.
- Wire comes as 'Dead Soft', 'Half Hard' and 'Hard'.
- Use Dead Soft wires for wire wrapping. Wire hardens as you work with it. Use Half hard or Hard wires for things such as findings or jump rings where more strength is needed in a single bend or loop.
- Wire also comes round, half round, square, twisted, imprinted with design.
- Wire also comes 'bare' (no anti-tarnish coating), or comes coated to prevent the development of a patina. Bare wire, can be oxidized (antiqued) but coated wire will not take to oxidation.
~click the images to enlarge
Chart from rings-things.com
How does one measure a MM? I would recommend that you get the inexpensive, no frills, uncomplicated brass Caliper. They are about $6 or $10 from the local hobby/jewelry store or online.
These are what I use for measure in addition to standard rulers, over the counter grid paper and my eyeballs.
Enjoy - I hope this helps.
Wire Jewelry Patterns, Information and Tutorials