Designed for precision in TIG welding, this alumina nozzle is an essential component for achieving optimal results in your welding projects. With a standard cup size of #4 and a 1/4 inch opening, it effectively directs shielding gas towards the weld puddle, ensuring a clean and efficient weld. Compatible with torch series 17, 18, and 26, this nozzle is made from durable alumina material, making it a reliable choice for professional welders. Packaged in sets of ten, it provides both convenience and value for those who demand quality in their welding consumables.