Tweco compatible-1/2-Inch orifice/bore gas concentration nozzle. Fits Tweco and Clarke style MIG guns. Suitable for medium duty applications. For use with Forney 85339. Also compatible with Tweco compatible gas diffuser.
I have a Forney welder and this attachment fits perfectly. I don't know if it's suitable for other welders. I bought other attachments which I returned because they didn't fit my welder. Forni, a bit pricey but just what I need.