- Exceptionally high impact resistance, heat resistance and thermal conductivity;Higher heat resistance than lava nozzles;Most popular nozzle type in TIG welding;Resist splatter build-up;Recommended for most welding operations except for use in confined areas;Made from high strength alumina;Has very good electrical insulating properties -
![WeldCraft Alumina Gas Lens Nozzles, 7/16 in, Size 7, For Torch 9; 20; 22; 24; 25, 1 EA, #53N61 WeldCraft Alumina Gas Lens Nozzles, 7/16 in, Size 7, For Torch 9; 20; 22; 24; 25, 1 EA, #53N61](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/229404/333068/366-54N16__87379.1592649488.jpg?c=2)