10 pcs Contact Tips .030 fit Lincoln Weld Pak 100 Plus WeldPak 100Plus 10681 Welder Attention: Due to the existence of multiple versions of Lincoln's Weld Pak 100 Plus welder, please check and verify that your welder's code number is 10681 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.