407728 - Tweco .030 MIG Contact Tip, Notched Design

Tweco .030" Notched Contact Tip

Keep your MIG gun running smoothly with the Tweco 407728 Contact Tip. Designed for welders who demand reliability, this contact tip is sized for .030" solid or flux-cored wires, making it a versatile choice for a wide range of thin-to-medium gauge welding applications. The contact tip is the final transfer point for welding current, and its condition directly impacts arc stability. This Tweco tip is built to deliver a consistent electrical connection, minimizing voltage drops and ensuring a smooth, spatter-free weld.

The notched configuration of this tip distinguishes it from standard smooth-barrel tips, potentially offering better grip or specific compatibility with certain nozzle and diffuser assemblies. Constructed from durable copper alloy, it withstands the intense heat of the welding arc and resists the erosion caused by the constant friction of moving wire. A worn tip can lead to "keyholing"—where the exit hole becomes oval-shaped—resulting in an unstable arc and poor weld placement. Replacing your tips regularly with high-quality replacements like the TWE407728 helps avoid these common issues.

Ideal for use with standard Tweco-style MIG guns, this consumable is easy to install and replace. It threads securely into the gas diffuser, ensuring optimal gas coverage and electrical continuity. Whether you are a hobbyist or a professional fabricator, stocking up on quality contact tips is the best way to prevent downtime and ensure every weld meets your standards.

Features & Applications

• Wire Compatibility: Specifically designed for .030" (0.8mm) diameter wires.
• Robust Material: Copper alloy withstands high thermal stress.
• Stable Arc: Promotes consistent current transfer for cleaner welds.