Lincoln Electric KP2078-1B1 MIG Welder Nozzles, Tips & Insulators; Connection Type: Threaded ; For Use With: Magnum.; Magnum. ; Tip Material: Aluminum ; Features: Contact Tip .068-.072 in (1.7-1.8 mm), 3/8 in (9.5 mm) long, 16 threadFeatures .068-.07