One set can be applied to various welding machines and multiple welding projects. It is enough to replace and daily use. Pack of 14PCS torch welding accessories for MIG welder nozzle contact tips. New and high quality, Made of high-quality materials, . GOOD ELECTRICITY CONDUCT: These copper contact tips are strong in texture, and high temperatures . The tips have good electricity conduct that can work well in welding projects. which can reduce arc heat loss and help secure the thread and opening of the nozzle seat, extending the service life. It can prevent the nozzles from loosening and breaking, providing you with a higher welding performance and experience., Manufacturer: Mcnhbdgg