632791 - Tweco 11-30 Contact Tip - .030" (0.8mm) - 5 Pack

Precision Tweco 11-30 Contact Tips for Reliable Arc Transfer

The Tweco 11-30 Contact Tip (ESAB Part # 632791) is a critical consumable designed for professional MIG welding operations using 0.030-inch (0.8mm) wire. Manufactured to strict tolerances, these contact tips are part of the industry-standard 11 Series, widely utilized in Tweco #1 (180 Amp) MIG guns and various Mini-MIG systems. The contact tip serves as the final point of electrical transfer to the welding electrode, making the quality of its construction paramount for arc stability.

Constructed from high-grade copper alloy, these tips offer superior thermal and electrical conductivity. This ensures that the welding current is transferred efficiently to the wire with minimal resistance heating, which can otherwise lead to premature tip failure or wire burn-back. The internal bore is precision-drilled and smoothed to reduce friction, allowing the wire to feed consistently without drag. This is particularly important when welding with smaller diameter wires where feedability issues can lead to bird-nesting at the drive rolls.

This package contains five (5) contact tips, providing welders with necessary replacements to maintain uptime. The threaded 1/4"-28 base allows for quick and secure installation into standard gas diffusers. Regular inspection and replacement of contact tips are recommended to prevent keyholing (oval wear of the exit hole), which causes wandering arcs and poor bead placement. These tips are compatible with standard shielding gases including Argon/CO2 mixes and straight CO2.