Pack of 25 premium quality Tweco Lincoln style MIG welding gun contact tips 14 series. Available tip sizes: 0.023" (14-23), 0.030" (14-30), 0.035" (14-35), 0.045" (14-45), 0.052" (14-52), 1/16" (14-116) and 5/64" (14-564). Ideal replacement for Lincoln contact tip KP14 series in Lincoln Magnum 200-400, Tweco Professional No.2/No.3/No.4 and SprayMaster series MIG welding guns, as well as many other specific MIG welding gun using Tweco 14-series contact tips. Machined from a copper alloy tubing providing a consistent and smooth inside diameter surface. Each contact tip is marked showing wire diameter. Inside diameter tolerance is held to +/-.003". With excellent electrical properties ideal for use in standard welding application up to 400 Amp. Threaded style contact tip to ensure proper contact with a gas diffuser when installed to the MIG gun.