Description These Lincoln Electric .025" wire feed welder contact tips are designed as replacement tips for solid and flux-cored welding wire with a diameter of 1/40". The tips promote good electrical conductivity for positive arc characteristics. 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