TOUGH LOCK Extra Heavy Duty Contact Tip, 0.040" Wire Size, Copper, 0.375" O. D., 100 Pack

For 1.0 mm wire Locking feature prevents contact tip and retaining head from overheating due to the loosening vibration often causes - cooler temperatures reduces wear and extends consumable life Greater Surface area contact between the contact tip, retaining head and neck ensures better heat dissipation and guarantees positive electrical conductivity