I'm located in delta. And yes the collet body and screen are both 3/32. I did change out the gas saver kit and switched back to the standard alumina cup and seemed to clear up the tungsten wear. There was a post mentioned earlier about air being able to make it pass from the back side of the Pyrex c...

I did notice lately that the Pyrex cup seems to be sitting a little loose lately. This is the only stubby set up I have at the moment and welding in tight corners. I'll try to get a stubby kit with the standard cups and try that. Thanks for all the info

With an inverter style machine, the pure tungstens don't work well. As for the settings, I've got pulse off, foot petal with hf on, slope down at 1.5.

I've got a set to run 1/8" tungstens. I've got 1.5 lanthanated and the radnor e3. Both tungstens don't look any better

I've got the post flow set at 6.5 second and preflow at .5. On steel the tungstens don't split.
Yesterday I actually watched the end of it split after a fresh sharpen with only welding for an 1" long
Is there a chance tungstens are bad from factory?

I'm welding on 6061 tubing with 4043 rod and my 2% lanthanated 3/32 tungsten isn't cooperating. The tungstens are new from htp usa. I have there invertig 221 with amps at 180 max frq 150 and balance 65%. Any ideas what causes this? Gas rate is at 18cfm