Direct the flow of shielding gas to your weld with these nozzles. When choosing a nozzle size, consider the thickness of the material you’re welding. In general, the thicker the material, the higher the nozzle size you should use. All nozzles require a compatible collet in order to connect to your TIG torch.

Ceramic—These nozzles are more durable than borosilicate glass nozzles, but can limit visibility since they aren’t transparent. Use them for general purpose welding applications. Standard nozzles require a threaded collet body. Gas-saving nozzles use less gas than standard nozzles but won’t compromise the quality of your weld. These nozzles require a gas diffuser, which prevents oxidation and pitting in the weld by reducing gas turbulence and improving shielding.

Borosilicate Glass—These nozzles are transparent, so you can see what you’re working on even in tight corners, but they break more easily than ceramic nozzles. Even though they use less gas than standard nozzles, they won’t compromise the quality of your weld. These nozzles require a push-on collet body as well as a gas diffuser, which prevents oxidation and pitting in the weld by reducing gas turbulence and improving shielding.

Gas Coverage—Narrow nozzles are good for welding most metals. Wide nozzles produce a large cloud of shielding gas, so they’re a good choice when working with metals that are difficult to weld, such as titanium and Inconel. However, they’re harder to fit into corners than standard nozzles.