Review on WeldingCity Welding Contact 200 400A No 2 No 4 by George Bell

This product has the same threads as the one that fits my migmax gun but stops turning when you screw it in just about two threads . I did notice that a small cylindrical protrusion on the front could cause it to flex. I'll try to grind it, the tip doesn't work as is. The tip is also longer than the Migmax tips but that shouldn't be a problem.