25 pcs Contact Tips .045 fit Lincoln Weld Pak 125HD WeldPak 125 HD 12102 Welder Attention: Due to the existence of multiple versions of Lincoln's Weld Pak 125HD welder, please check and verify that your welder's code number is 12102 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.