11501212 - Tweco 15H-116 Heavy Duty Contact Tip 1/16" (25 Pack)

Genuine Tweco 15H-116 Contact Tips – 25 Pack

The Tweco 15H-116 (Part No. 1150-1212) is a premium heavy-duty contact tip designed for professional welders who demand reliability and longevity from their MIG consumables. As part of the renowned Tweco 15H series, these tips are built with a larger outer diameter and thicker walls compared to the standard 14 series, making them the go-to choice for high-heat, high-amperage applications typically found in heavy fabrication sectors.

Precision Engineering

Each tip is manufactured from high-quality copper alloy, optimized for electrical conductivity and thermal management. The tip bore is strictly controlled to accommodate 1/16-inch (1.6mm) wire with the perfect amount of clearance—tight enough to ensure solid electrical transfer for a stable arc, yet loose enough to prevent binding and bird-nesting. This balance is critical for maintaining consistent weld parameters and reducing operator frustration.

Compatibility and Fitment

These contact tips are designed to fit Tweco #5 (500A) and #6 (600A) air-cooled MIG guns, as well as various water-cooled models and automatic torches that accept the 15H style. They thread directly into standard heavy-duty gas diffusers (such as the 55 and 55H series) using a 3/8"-24 UNF thread. This coarse thread design is robust and resists cross-threading, ensuring quick changeovers on the shop floor.

Value and Convenience

Sold in a package of 25, these tips provide excellent value for high-volume users. Regular replacement of contact tips is essential for maintaining weld quality; a worn tip can cause an erratic arc, excessive spatter, and poor bead profile. With this bulk pack, you ensure that your welding stations are always stocked with fresh consumables, keeping your production schedule on track and your weld quality high.