Contact tips

[EVIL"X"]

Replaced wire spool on my HH 180. When I replaced the contact tip, it seemed to protrude past the nozzle more than I recall. I know it's seated properly. Is there a specific dimension for the tip past the end of the nozzle?

[farmersamm]

I have a small Hobart 135, and the tips screwed in harder, and didn't seem to go as far in after the machine got older. I wonder if the heat slightly distorts the threads in the torch. I use an anti spatter paste dip, so I figure it isn't spatter on the threads.

For me, it isn't too much of an issue because I mostly weld outside, and use flux core. I don't have the gas nozzle on most of the time, it sits in the tool chest.

[lugweld]

On some brands, they do have different length tips for different applications. Additionally, they wear down or the nozzle does.