KP2745-045R-B100 - Lincoln Electric Magnum PRO Copper Plus Contact Tip .045 (100-Pack)

Stop Changing Tips, Start Welding

Every welder knows the frustration of a contact tip failing in the middle of a critical pass. The arc starts to stutter, the wire drags, and suddenly you are grinding out a defect because your tip keyholed. The Lincoln Electric Magnum PRO Contact Tips (KP2745-045R-B100) are built to solve exactly that problem. Designed with the welder in mind, these tips use Lincoln's Copper Plus® technology, a special alloy that handles heat far better than generic copper tips. This means the tip stays harder for longer, maintaining a tight, clean electrical connection with your 0.045" wire even when you are pushing 500+ amps.

The difference is noticeable immediately. The arc feels more stable because the current transfer point remains consistent. You will experience fewer burnbacks and less micro-arcing inside the tip, which is the primary cause of erratic feeding. The physical shape of the tip is beefier, giving it more surface area to shed heat, so it doesn't turn into a molten blob at the end of your gun. When it is finally time to swap it out, you won't need a breaker bar to get it off. The Magnum PRO tips feature a unique flattened thread design that prevents them from seizing into the diffuser, so a quick twist with your pliers is all it takes.

This 100-pack bulk box is perfect for busy shops that run Magnum PRO guns. Whether you are running a handheld 350L or a heavy-duty 550, these tips fit the standard Magnum PRO diffusers. By keeping a fresh supply of high-quality tips on hand, you ensure that your welds remain X-ray quality and your downtime stays at a minimum. Don't let cheap consumables ruin your day—upgrade to the extended life of Copper Plus and keep your hood down and your arc on.

Key Features for the Welder

• Longer Life: Resists wear and keyholing, meaning fewer trips to the tool crib.
• Cooler Running: Larger mass and special alloy keep the tip temperature down.
• Easy Change: Anti-seize threads mean the tip comes out easily every time.
• Stable Arc: Consistent contact ensures smooth wire feeding and better bead appearance.