11501202 - Tweco 15H35 Heavy Duty Contact Tip 0.035 Inch (25 Pack)

Heavy-Duty Performance with Tweco 15H35 Contact Tips

Welders know that the contact tip is the final transfer point for welding current, making it one of the most critical components in the MIG gun assembly. The Tweco 15H35 Contact Tip is built to deliver superior conductivity and arc stability for professional welders using 0.035" (0.9mm) wire. This pack of 25 heavy-duty tips is designed to withstand the rigors of high-amperage welding, ensuring you spend more time laying beads and less time troubleshooting wire feed issues.

The 15H35 belongs to Tweco's 15 Series, characterized by a 1.5-inch length and a substantial outer diameter that handles heat significantly better than light-duty tips. The heavy-duty copper alloy construction resists deformation and keyholing—the ovaling of the bore that occurs over time—which can cause the arc to wander. By maintaining a tight, concentric bore, the 15H35 ensures the wire makes consistent electrical contact, providing the smooth, crackling arc that professional welders demand.

Installation is straightforward with the industry-standard 1/4"-20 threaded base, ensuring a secure mechanical and electrical connection to the gas diffuser. These tips are the OEM standard for Tweco #3 (300A) and #4 (400A) MIG guns, as well as the Spray Master series. Whether you are performing short-circuit MIG on thin gauge sheet metal or spray transfer on heavy plate, the 15H35 provides the thermal durability required for continuous welding cycles.

Using genuine Tweco parts like the 15H35 (Part No. 1150-1202) guarantees that your equipment operates within its specified parameters. Generic tips often suffer from poor machining tolerances or inferior copper alloys, leading to premature failure and frustration. With this 25-pack, you are equipped with premium consumables that support consistent wire stick-out and gas coverage, ultimately contributing to cleaner welds with less spatter and cleanup.