105Z42 - Weldcraft 105Z42 Lava TIG Cup #5 (10-Pack)

Weldcraft 105Z42 Lava Nozzle: Built for the Heat

Every TIG welder knows the frustration of working in a tight spot—like the inside of a manifold or a sharp corner on a roll cage—and hearing that dreaded "crack" sound. Standard pink alumina cups just can't handle the heat when it bounces back off the base metal. The heat gets trapped, the cup expands too fast, and suddenly you are stopping to replace a broken nozzle. The Weldcraft 105Z42 Lava Nozzle is the solution to this common headache. Made from a specialized Lava ceramic material, these nozzles are built to withstand the intense reflective heat that destroys ordinary cups.

While Lava nozzles might cost a little more upfront than standard alumina, they pay for themselves by lasting much longer in abusive conditions. If you are tired of your cups shattering just because you are welding in a groove or a corner, switching to the 105Z42 is a game-changer. These #5 cups (5/16" opening) offer excellent gas coverage for standard applications while providing the durability needed for industrial fabrication. They are machined and fired to be tough, resisting the thermal shock that happens when you go from welding amperage to cooling off rapidly.

Compatibility is key for any welder's kit. These nozzles fit the most common TIG torches in the industry. Whether you are running a heavy-duty water-cooled 18 series torch, a standard air-cooled 17 series, or the heavier 26 series, these cups screw right on. They are also compatible with many 3-series torch equivalents from other brands like CK Worldwide. This 10-pack ensures you have plenty of stock on hand, so you aren't left scrambling for a replacement in the middle of a critical job. Upgrade your consumables to match the difficulty of your welds with Weldcraft's Lava series.

Key Applications

• Confined Space Welding: Ideal for internal pipe welds, box sections, and tight corners where heat cannot escape.
• High Amperage TIG: Withstands higher temperatures without structural failure.
• Precision Fabrication: Maintains gas coverage integrity by not cracking mid-weld.