Easy to use: it is simple in structure and easy to install, even if you do not know the technology. Scope of application: contact tips are suitable for Binzel 15AK MIG welding torch. High quality: it is made of high quality materials, so it is and has a long service life.Welding contact tips also feature a smoother center bore, resulting in less friction as the wire feeds through, resulting in a consistent wire feeding with less drag. High temperature and corrosion resistance: it is made of red copper material, so it is resistant to high temperature and corrosion with better strength and hardness can provide good thermal and electrical conductivity to allow consistent current transfer to the wire. Replacement parts:Contact welding tip is a consumable and needs to be replaced in time.If you have a welding torch at home, buy it, it will be the perfect replacement part.