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'''British Standard Wire Gauge''' ('''SWG''') is a set of wire sizes given by British_Standards 3737:1964 (now withdrawn). It is also known as: Imperial Wire Gauge or British Standard Gauge. Use of SWG sizes has fallen greatly in popularity, but is still used as a measure of thickness in guitar strings and some electrical wire. Cross sectional area in square millimetres is now a more popular size measurement. The current British Standard for metallic materials such as wire and sheet is BS 6722:1986, which is a solely metric standard. [[American wire gauge]] (AWG) is a similar but not quite equivalent numbering scheme.
The basis of the system is the ''[[thou]]'' or ''mil'' in US English which is 0.001 inch and is different to the millimetre (mm). No. 7/0, the largest size, is 0.50 inch, 500 thou or 12.7
== Table of British Standard Wire Gauges and diameters ==
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== See also ==
{{From Wikipedia|American_wire_gauge}}▼
* [[American wire gauge]]
▲{{From Wikipedia|American_wire_gauge}}
== References ==
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