407728 - Tweco .030 MIG Contact Tip, Notched Design

Reliable Performance for MIG Welding

The Tweco 407728 MIG Contact Tip is an essential consumable designed to maintain the efficiency and quality of your MIG welding operations. Engineered for use with .030-inch (0.8mm) welding wire, this contact tip ensures precise current transfer from the welding gun to the wire, a critical factor in establishing a stable and consistent arc. Manufactured from a high-grade copper alloy, it offers excellent thermal conductivity and resistance to heat buildup, which helps prevent the wire from burning back or sticking inside the bore.

One of the standout features of this specific model is its notched design. While standard tips are often smooth, the notched feature can aid in identification or provide a specific seating characteristic depending on the diffuser setup. The bore is precision-drilled to tight tolerances, ensuring that the wire feeds smoothly without excessive play, which can lead to wandering arcs, or too much friction, which can cause bird-nesting at the feeder. Regular replacement of contact tips is vital for maintaining weld quality, as worn tips can cause erratic electrical contact and poor bead appearance.

Whether you are working in an automotive body shop, performing light fabrication, or handling general repairs, using genuine or high-quality compatible Tweco consumables ensures your equipment operates at peak performance. This tip is designed to withstand the rigors of daily welding while delivering the consistency professional welders demand.

Key Benefits

• Enhanced Conductivity: Premium copper formulation maximizes electrical transfer efficiency.
• Precision Fit: Accurate bore sizing reduces wire play and improves targeting.
• Durability: Resists deformation and wear under high-heat conditions.