Contact Tip Compatible with Brand ESAB Series 632 Compatible with Model MIG-41 MT-450W ST-16 ST-21 Compatible with Series MIG-41 MT-450W ST-16 ST-21 Duty Rating Standard Duty Maximum Wire Diameter 0.035 in Connection Type Threaded For Nozzle Series 598 633 Welding Processes MIG Welding (GMAW) Connection Thread Size 3/8 In.-24 Inside Diameter 0.043 in Outside Diameter 0.375 in Overall Length 1.5 in Package Quantity 10