Tapered Contact Tip Compatible with Brand Lightning Series S19393 Compatible with Model Magnum 300 Magnum 400 Compatible with Series Magnum 300 Magnum 400 Tip Shape Tapered Duty Rating Standard Duty Maximum Wire Diameter 0.035 in Maximum Current 400 A Connection Type Threaded For Nozzle Series M16830 For Gas Diffuser Number S19395-1 Welding Processes MIG Welding (GMAW) Connection Thread Size 1/4 In.-28 Inside Diameter 0.043 in Outside Diameter 0.25 in Overall Length 0.5 in