10 pcs Tapered Contact Tips .030 fit Lincoln PowerMig 180Dual 12631 Welder Attention: Due to the existence of multiple versions of Lincoln's PowerMig 180Dual welder, please check and verify that your welder's code number is 12631 before making a purchase. The code number for Lincoln welders can be found on the number plate of the welder and is a 5-digit code.