SimonR501 said:I think so!
The numbers indicate how many times the wire is drawn through a die to reduce the diameter.
So 4 gauge has been 'drawn' more times than 2 gauge - therefore 4 gauge is smaller in diameter!
EHH ? well that depends on the size of the die, drawing through twice will not make it smaller
Gauges vary enormously for example SWG is different from metric, sometimes Gauges vary in dia depending on material, wires can be gauged on electrical resistance for example, sheet is usually measured by gauge which is a set amount of material hammered out into a foot square and then thickness measured. some wire gauges are simply .5" start dia then reducing by a given % for each smaller gauge.
As has been said thicker wire and thinner wire works well
Good picture Craig, i will print that off and cut it out carefully