998070 - ESAB 998070 Contact Tip .052 (#55) for MT Series Guns

Precision Contact Tip for ESAB MT Series Guns

The ESAB 998070 is a high-quality replacement contact tip designed specifically for the MT-250, MT-300, and MT-400 series MIG guns (formerly associated with L-Tec and Linde). Manufactured to strict tolerances, this tip features a #55 drill size bore, corresponding to a 0.052-inch (1.3 mm) wire diameter. The correct bore sizing is critical for maintaining consistent electrical contact between the power source and the welding wire, ensuring a stable arc and reducing micro-arcing inside the tip which can lead to premature failure.

Constructed from high-grade copper alloy, this contact tip offers excellent thermal and electrical conductivity. It is designed to withstand the heat generated during medium to heavy-duty welding applications typical of the 250A to 400A range. The threaded design ensures a secure fit within the gas diffuser, preventing gas leakage and maintaining proper alignment of the wire. This component is an essential consumable for fabricators using .052" solid or flux-cored wires in industrial environments.

Regular replacement of contact tips is necessary to maintain weld quality. As the bore wears into an oval shape, the wire can wander, leading to erratic arc characteristics. The ESAB 998070 provides a reliable OEM-quality fit and performance, ensuring your equipment operates at peak efficiency.