KP2745-564 - Lincoln Magnum PRO 550A Contact Tip 5/64 Copper Plus (10-Pack)

Keep Your Gun Cool and Your Arc Smooth

If you are pushing 550 amps and running heavy 5/64" wire, you know that heat is the enemy of your contact tip. Standard tips overheat, soften, and eventually cause the wire to drag or burn back, forcing you to stop welding and swap parts. The Lincoln Electric KP2745-564 Copper Plus Contact Tip is built to handle the heat of heavy fabrication without quitting. Designed for the Magnum PRO series, these tips are physically larger and pack more copper than standard tips. This extra mass acts like a radiator, pulling heat away from the wire and keeping the tip cooler for longer. The result? You spend more time laying beads and less time walking back to the tool crib for parts.

We have all been there: you go to change a blown tip, and it is fused solid to the diffuser. You grab the pliers, crank on it, and end up stripping the threads or ruining the diffuser entirely. Lincoln solved this headache with their Anti-Seize thread technology. The threads on the KP2745-564 are designed with a special profile that prevents them from melting and locking into the gun, even after hours of high-amperage welding. This means when it is finally time to change the tip, it spins off easily, saving your diffuser and your patience.

These tips come in a convenient pack of 10, ensuring you have plenty of backup for the job site. Whether you are welding structural steel, heavy equipment, or pipe, the consistent bore size ensures smooth wire feeding and a stable arc. Upgrade your Magnum PRO setup with Copper Plus tips and experience the difference that better thermal engineering makes in your daily welding comfort and productivity.