KP2744-040 - Lincoln Electric Magnum PRO Copper Plus Contact Tip - 350A, .040 in (1.0 mm) - 10 Pack

Keep Your Arc Smooth and Your Gun Cool

Every welder knows the frustration of a contact tip that overheats, causing the wire to drag, the arc to stutter, and eventually, the wire to burn back and fuse to the tip. It kills your rhythm and stops production. The Lincoln Electric KP2744-040 Magnum® PRO Contact Tips are built to solve exactly that problem. These aren't your generic, thin-walled tips that melt halfway through a shift. These are engineered with Lincoln's Copper Plus® technology. Essentially, they are beefier—they have a larger diameter which means there is more copper metal to soak up and dissipate the intense heat generated at the arc. A cooler tip means the wire feeds smoother, the electricity transfers better, and the tip lasts significantly longer before the keyhole wears out.

Another major headache these tips eliminate is the dreaded seized thread. We've all been there: you go to change a worn-out tip, and it's welded itself to the diffuser. You grab the pliers, crank on it, and end up stripping the diffuser or breaking the tip off. Lincoln's Anti-Seize™ Threading is designed to prevent this nightmare. The threads are cut in a way that handles the expansion from heat without locking up. When it's time to swap out the tip, it spins out easily, saving your diffuser and saving you from a bout of shop-floor rage.

These specific tips are sized for .040 inch (1.0 mm) wire and are rated for 350 amps, making them perfect for medium to heavy-duty fabrication work. Whether you are running mild steel, stainless, or flux-cored wire, consistent contact is key to a buttery smooth bead. Because these tips maintain their shape and bore size longer than standard tips, you get a more consistent arc focus and less wandering. They are designed to fit perfectly with your Magnum® PRO MIG gun, ensuring that your gas coverage and stick-out remain exactly where you need them.

This pack comes with 10 contact tips, so you can keep a handful in your toolbox or load up the supply cabinet. If you are tired of cheap tips that fail after a few hours of arc time, upgrading to the Copper Plus® line is a no-brainer. It’s a small investment that pays off in less downtime, fewer burn-backs, and a much smoother day under the hood.