Tweco 16S-45 Contact Tip .045 Heavy Duty (Pack of 25)

Maximize Your Arc Stability with Tweco 16S-45 Tips

Every welder knows that the contact tip is the final transfer point for welding current, and its condition can make or break your weld. The Tweco 16S-45 Heavy Duty Contact Tip (Part #1160-1426) is built to handle the heat and keep you welding longer. Designed specifically for .045-inch wire, this tip belongs to the heavy-duty 16S series, which means it carries more copper than standard tips. That extra material isn't just for show—it acts as a heat sink, pulling thermal energy away from the wire exit point to keep the tip cooler during long beads or high-amperage spray transfer modes.

If you are running a Tweco Spray Master or Classic gun with EL52CT-16 or HD54-16 diffusers, this is the tip you need. The 3/8"-24 threads screw in smoothly and seat firmly, ensuring a solid electrical connection that prevents voltage drops. A loose or poorly made tip can cause erratic arcs, sputtering, and frustrating burnbacks that stop your production cold. With genuine Tweco OEM parts, you get a smooth, consistent bore that guides the wire accurately to the joint without snagging or wandering.

Whether you are fabricating structural steel, repairing heavy equipment, or running production parts, the 16S-45 delivers the reliability professional welders demand. The heavy-duty construction resists the keyholing effect—where the wire wears an oval shape into the tip—longer than standard tips, saving you trips to the tool crib. Keep a pack of these in your shop to ensure your MIG gun is always ready to lay down high-quality welds with the smooth, frying-bacon sound of a perfectly tuned machine.