Smallest Tungsten you use?

[CGCINC]

I have never seen a .020 tungsten,,,are you sure about that size,,,, cause a .040 electrode has an amp range of about 5 to 30 amps,,,,using simple math,,,1/2 the dia would reduce the amps by about a factor of 4 in capacity...meaning such a small size would have a range of 1.5 to 8 amps...

Here... http://weldingdirect.com/10pac0202tho.html

Sounds like the .040 is the smallest I would need then. After doing my dog statue I think 1/16th is a little big for some of the more intricate parts.