Regards,
J.B.
Gas lenses take the turbulence out of the shielding gas. So you can
have the tungsten a bit further away. Or you can use less gas. Or
get better shielding.
The downside is that they are bigger, harder to get in close in a
corner, harder to see around.
Dan
Google my name "Ernie Leimkuhler", and "gas lens"
I get tired of retyping the same stuff after 13 years.