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The ITW Miller/Tregaskiss 403-21-52 is a Tough Lock series heavy-duty copper contact tip designed for 0.052-inch wire. It is manufactured using a mandrel-drawing process to ensure precise bore tolerances and utilizes a dual-taper design to optimize thermal and electrical conductivity in robotic and semi-automatic MIG welding environments.
Features
Dual Taper Technology: Increases surface area contact between the contact tip, retaining head, and neck for improved heat dissipation
Mandrel-Drawn Construction: Controls internal tip tolerances to ensure consistent wire feeding
Locking Function: Prevents the contact tip and retaining head from loosening due to vibration during operation
Thermal Management: Lower operating temperatures reduce tip wear and extend consumable life
Electrical Conductivity: Positive electrical contact maintained through dual-taper seating
Universal Compatibility: Adaptable to other MIG gun brands via the TOUGH LOCK conversion series
