KP2010-4B1 - Lincoln Electric KP2010-4B1 .035" Notched Contact Tip (10-Pack)

High-Performance .035" Notched Contact Tips for Magnum MIG Guns

The Lincoln Electric KP2010-4B1 is a premium contact tip designed to deliver optimal electrical conductivity and wire feed performance for MIG welding professionals. Compatible with the widely used Magnum® 200, 300, 400, and 250L MIG guns, this contact tip is an indispensable component for welders utilizing .035-inch (0.9 mm) solid or flux-cored wires. The contact tip is the final point of contact between the welding gun and the wire, making its quality paramount for establishing and maintaining a stable welding arc. Poor-quality tips can cause erratic arcs, excessive spatter, and wire burn-back, issues that the precision engineering of the KP2010-4B1 helps to eliminate.

Constructed from high-grade copper alloy, this contact tip offers excellent thermal conductivity and durability. During the welding process, the contact tip is exposed to intense radiant heat and resistive heating. The superior material composition of the KP2010-4B1 ensures it maintains its structural integrity and bore dimension longer than inferior substitutes. The "notched" base design is specifically engineered to lock into the corresponding gas diffuser, preventing the tip from loosening due to thermal expansion and contraction or vibration during welding. This secure interface maximizes current transfer efficiency, which is essential for achieving deep penetration and sound welds.

Regular maintenance of your MIG gun includes frequent inspection and replacement of the contact tip. As the wire feeds through the tip, it eventually wears the bore into an oval shape ("keyholing"), which degrades electrical contact and aim. The KP2010-4B1 comes in a value-oriented 10-pack, encouraging operators to change tips as soon as performance begins to drift, rather than struggling with worn components. This proactive approach to maintenance results in cleaner welds, less rework, and higher overall productivity.

Whether you are welding mild steel, stainless steel, or aluminum, the precision bore of the KP2010-4B1 ensures smooth wire feeding with minimal drag. It is designed to handle the amperage ranges typical of the Magnum 200-400 series guns, making it a versatile choice for various duty cycles. Trust in the engineering of Lincoln Electric to keep your MIG equipment running smoothly. Invest in the KP2010-4B1 contact tips for reliable, consistent, and high-quality welding results every time you pull the trigger.