The liner in your MIG torch is just one component that makes up a smooth wire feeding experience. If there are any issues with it, you’re going to have problems when you weld. That’s why changing your liner as needed is essential. Letting your wire drag because your liner has kinked inside the torch is going to give you an erratic feed, which you don’t want. Changing your liner is relatively easy, so when you do need to change it, here’s our step-by-step guide on how. | UNIMIG

Differences between Shielded Metal Arc Welding (SMAW) and Tungsten Inert Gas (TIG) - Mechanical Engg