Q401-4-62 - Tregaskiss 401-4-62 Heavy Duty MIG Nozzle, 5/8" Bore, 1/8" Recess

Tregaskiss 401-4-62 Heavy Duty Nozzle for Industrial MIG Welding

The Tregaskiss 401-4-62 is a premium heavy-duty nozzle designed to deliver consistent performance in demanding welding environments. Featuring a 5/8-inch bore and a 1/8-inch contact tip recess, this nozzle is engineered to protect your contact tip while ensuring optimal gas shielding. It is a core component of the Tregaskiss Common Consumable Platform, widely used across TOUGH GUN robotic and semi-automatic MIG guns.

This specific nozzle is also identified as the correct replacement part for systems utilizing the 0558102212 Retrokit. This retrokit is often used to convert other brands of welding guns (such as ESAB) to accept high-performance Tregaskiss consumables. By switching to Tregaskiss front-end parts, users benefit from longer consumable life and reduced maintenance frequency.

Constructed from high-quality copper, the 401-4-62 withstands high heat and resists spatter adhesion better than standard light-duty nozzles. The precision threading ensures a tight fit to the nozzle insulator, promoting efficient heat dissipation and electrical isolation. Whether you are running a robotic cell or a manual fabrication station, this nozzle provides the reliability needed to maintain arc stability and weld quality.

Key Benefits

• Durability: Heavy wall thickness resists deformation and heat damage.


• Compatibility: Fits standard Tregaskiss TOUGH GUN setups and specific retrofitted torches.


• Protection: 1/8" recess keeps the contact tip shielded from the arc and spatter.