I can not determine the true quality of the goods, because I was wrong when ordering what kind of instant pistol I have. HOWEVER I was able to adapt the tips to my Mig pistol and they work well. There is slight play causing intermittent contact with the wire and some welds. This may be because I cut them to fit my nozzle. Again, this review cannot be fully trusted as it basically states that it will NOT fit the MDX series pistol that comes with the Miller Multimatic 215.