Description The Lincoln Electric flux-cored welding nozzle protects the threads and openings of the gas diffuser and contact tip holder during the flux-cored welding process, while simultaneously insulating the operator from the electrical circuit. Longer life and fewer tip changes reduces expendable part and labor costs while increasing productivity. WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov