Starrett Standard Wire Gauge
The Starrett Standard Wire Gage is the generally accepted standard for non-ferrous metals as adopted by brass manufacturers. It is especially useful for electricians and others to gage sheet, plate and wire made of non-ferrous metals like copper, brass, aluminum, etc. Screw slotting cutters are also made to this gage. This gage has decimal equivalents on the reverse side and a satin finish.