11401209 - Tweco 14-564 Contact Tip 5/64" (2.0mm) - Pack of 25

Technical Overview of Tweco 14-564 Contact Tips

The Tweco 14-564 Contact Tip (SKU: 1140-1209) is a critical consumable component designed for MIG welding applications utilizing 5/64-inch (2.0mm) wire. Part of the industry-renowned Tweco 14 Series, this contact tip is engineered to deliver consistent electrical transfer and thermal management in demanding industrial environments. The tip features a standard length of 1.5 inches (38.1mm) and an outer diameter of 0.375 inches (9.5mm), making it compatible with a wide range of Tweco MIG guns, including the classic No. 2, No. 3, and No. 4 series, as well as numerous aftermarket equivalents that utilize the Tweco style front-end consumables.

Manufactured from high-grade copper alloy, the 14-564 tip is designed to withstand the high heat and current densities associated with welding larger diameter wires like 5/64". The internal bore is precision-drilled to a specific tolerance (typically around 0.088" to 0.090") to ensure smooth wire feeding while maintaining sufficient electrical contact. This balance is crucial for preventing micro-arcing inside the tip, which can lead to premature failure and burnback. The base of the tip features a 1/4"-28 UNF thread, allowing for a secure and conductive interface with standard gas diffusers such as the Tweco 52, 52-23, and 54A series.

This product is supplied in a package of 25 units, catering to high-volume fabrication shops where consumable turnover is a regular operational factor. The consistent manufacturing quality of Tweco tips ensures that each replacement performs identically to the last, minimizing downtime for troubleshooting arc issues. Whether used for solid wire or flux-cored applications, the 14-564 provides the reliability required for structural steel, heavy equipment manufacturing, and general fabrication tasks.