KP2745-040-B100 - Lincoln Electric Magnum PRO Copper Plus Contact Tip .040 in (100 Pack)

Superior Arc Stability and Heat Management

For professional welders using Magnum PRO MIG guns, the quality of the contact tip dictates the quality of the arc. The Lincoln Electric KP2745-040-B100 Copper Plus Contact Tip is designed to deliver precision performance for .040" (1.0 mm) wire applications. Unlike standard tips that can overheat and degrade rapidly, the Copper Plus design utilizes a larger outer diameter. This additional copper mass acts as a superior heat sink, drawing thermal energy away from the wire interface. The result is a tip that stays cooler, maintains a consistent bore diameter, and provides stable current transfer for longer periods.

One of the most frequent annoyances in MIG welding is a contact tip that refuses to unscrew after a long shift. Lincoln Electric solves this with their innovative Anti-Seize™ threading. The threads on these tips feature a unique profile that prevents them from fusing to the diffuser, even after being subjected to the extreme heat of 550A welding cycles. This means you spend less time wrestling with pliers and more time laying beads. The secure fit also ensures optimal electrical conductivity, reducing micro-arcing inside the threads which is a common cause of premature failure.

These tips are a standard "Standard" relationship size, making them versatile for a wide range of welding positions and joint configurations. Whether you are welding mild steel, stainless, or aluminum, the consistent manufacturing tolerances of Lincoln Electric consumables ensure smooth wire feeding and reduced burn-backs. This 100-pack bulk option is ideal for busy workshops where performance consistency is non-negotiable. Upgrade your Magnum PRO setup with consumables that are built to handle the heat.