Contact Tip Compatible with Brand MK Series 621 Compatible with Model Cobra Torch Prince Torch Compatible with Series Cobra Torch Prince Torch Duty Rating Standard Duty Maximum Wire Diameter 0.03 in Connection Type Threaded Welding Processes MIG Welding (GMAW) Connection Thread Size 12-24 Inside Diameter 0.04 in Outside Diameter 0.25 in Package Quantity 10