KP2745-040R-B100 - Magnum PRO 550A Copper Plus Contact Tips .040 Bulk Pack

Superior Arc Stability with Magnum PRO Copper Plus Technology

For professional welders, the contact tip is the critical transfer point of welding current to the wire. A worn or overheating tip can lead to erratic arcs, burn-backs, and frustrating downtime. The Lincoln Electric KP2745-040R-B100 contact tips are designed to solve these common issues through superior engineering and materials. Part of the Magnum PRO series, these tips are crafted from a specialized Copper Plus® alloy that handles heat far better than standard copper. This means the tip stays harder at high temperatures, preventing the bore from wearing out prematurely (keyholing) and keeping your wire targeting precise.

These tips are sized for .040 inch (1.0 mm) wire and are built to handle the demands of high-output welding, with a rating of 550 Amps. One of the standout features of the Magnum PRO system is the patent-pending anti-seize thread design. If you have ever struggled to remove a fused contact tip with pliers, you will appreciate this innovation. The threads are designed to prevent the tip from melting to the diffuser, ensuring that when it is finally time to change the tip, it comes out easily. Additionally, the flattened thread form maximizes the contact area for electrical transfer, ensuring that the power goes into the arc, not into heating up the gun.

This 100-pack bulk box is perfect for busy shops that demand consistency. By using genuine Lincoln Electric consumables, you ensure that your Magnum PRO gun operates at peak efficiency. The consistent bore diameter reduces micro-arcing, which in turn reduces the buildup of spatter on the tip face. Whether you are welding mild steel, stainless, or aluminum, having a fresh, high-quality contact tip is the first step to a perfect bead. Upgrade your consumables to Copper Plus and experience the difference in arc control and longevity.

Why Choose Magnum PRO Tips?

• Cooler Operation: Larger mass and better conductivity keep the tip cooler, preventing wire burn-back.
• Reliable Feeding: Precision manufacturing ensures the wire feeds smoothly without drag or wandering.
• Secure Connection: The robust thread design ensures the tip stays tight during operation but releases easily for maintenance.