11101104 - Tweco 11-45 Contact Tip .045 (Pack of 25)

Genuine Tweco 11-45 Contact Tips for Industrial MIG Welding

The Tweco 11-45 Standard Contact Tip is a critical consumable designed for professional MIG welding applications requiring 0.045-inch (1.2mm) wire. Part of the widely utilized 11 Series, these contact tips are engineered to deliver consistent electrical conductivity and reliable wire feeding performance. Manufactured from a premium copper alloy, they offer excellent heat dissipation, which is essential for maintaining structural integrity during prolonged welding cycles. The tips feature a standard 1/4"-28 UNF thread, ensuring compatibility with a broad range of Tweco MIG guns, including the No. 1, No. 2, No. 3, and No. 4 series, as well as many aftermarket equivalents that utilize the Tweco style front-end consumables.

Precision machining is a hallmark of Tweco's manufacturing process. The internal bore of the 11-45 tip is drilled to exact tolerances to accommodate 0.045" wire with minimal friction while maintaining sufficient contact for arc stability. This balance reduces the likelihood of micro-arcing inside the tip, a common cause of premature failure and burnback. By ensuring a smooth wire path, these tips help minimize downtime associated with wire jamming or erratic arc characteristics. The exterior is robust enough to withstand the harsh environment of industrial fabrication, resisting spatter adhesion better than lower-quality alternatives.

This product is supplied in a package of 25, making it an economical choice for high-volume fabrication shops and maintenance departments. Keeping a healthy stock of consumables is vital for operational efficiency, and the 25-pack configuration ensures that welders have immediate access to replacements when wear occurs. Whether used in automotive repair, structural steel fabrication, or general manufacturing, the Tweco 11-45 contact tip remains a standard-bearer for quality and reliability in the welding industry.