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The XTRWELD 21-37F is a self-insulated, flush MIG nozzle designed for Tweco-style MIG welding guns operating in the 100A to 160A range. The nozzle features a 3/8-inch threaded connection and measures 0.85 inches in width, making it a direct-fit OEM-quality replacement for welders who need reliable consumables without downtime. It is marked with its part number and size for quick identification during high-volume service environments. Licensed welding technicians and shop professionals handling MIG setups are the primary installers of this consumable.
This nozzle is suited for use with Tweco-style MIG guns rated from 100A to 160A, including the Classic Weldskill and Mini-MIG platforms. The flush profile is appropriate for flat and groove welds where nozzle clearance is not a limiting factor. It is commonly used in light industrial, fabrication, and production welding environments where Tweco-compatible consumables are the standard.
Designed for use with Tweco-style MIG guns rated 100A to 160A, including the Classic Weldskill and Mini-MIG models. Interchangeable with Tweco Weldskill consumables of the same thread and nozzle type.
Installation is performed by qualified welders or MIG equipment technicians. Always power down the welding machine and allow the gun and nozzle to cool completely before removing or installing consumables. Use the appropriate nozzle wrench to avoid thread damage during installation. Inspect the contact tip and liner condition any time a nozzle is replaced.
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