11601138 - Tweco 16ST-52 Standard Contact Tip 0.052" (Pack of 25)

Technical Overview of Tweco 16ST-52 Contact Tips

The Tweco 16ST-52 is a standard-duty contact tip engineered for industrial MIG welding applications utilizing 0.052-inch (1.3 mm) wire. Manufactured from high-grade copper alloy, this contact tip ensures superior electrical conductivity and thermal transfer, which are critical factors for maintaining a stable arc and consistent weld penetration during prolonged welding sessions. The 16 Series design is an industry standard, known for its robust performance in medium to heavy-duty fabrication environments.

This specific model features a 3/8"-24 UNF thread, making it directly compatible with standard gas diffusers found in Tweco No. 3, No. 4, No. 5, and No. 6 MIG guns. It also fits numerous compatible aftermarket guns (such as Lincoln Magnum and Miller Roughneck series equipped with Tweco back-ends). The precision-drilled bore minimizes friction while maintaining excellent electrical contact with the wire, significantly reducing micro-arcing inside the tip that can lead to premature failure or burn-back.

Supplied in a package of 25, the 1160-1138 SKU provides a cost-effective inventory solution for high-volume fabrication shops. Regular replacement of contact tips is essential for preventing wire feed issues and porosity; the 16ST-52 offers a balance of longevity and performance consistent with Tweco's rigorous manufacturing standards.