Description These Lincoln Electric 0.035" wire feed welder contact tips are copper replacement tips for use in both solid and flux-cored welding wires. The copper tip promotes good electrical conductivity for positive arc characteristics. Longer life and fewer tip changes reduce expendable part and labor costs while increasing arc time. 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