Fits my light Hobart 140 wire feed welding machine. Does exactly what it's supposed to: guides the wire smoothly and provides a good electrical current path. I have used several Forney products and have not been disappointed.
They worked great with the .023 wire I bought. Being new to welding, three pointers have proven useful when trying to get the welder to close. For the most part, the wire does not stick to the copper tabs and it is very easy to unclog.
They don't fit my gun. For some amazing reason they decided to change the TPI in them because they only have about 4 threads. 1/4-20 through 1/4-28 to 1/4-24, who cares, they only need 2 full turns to screw in. now they are directly intertwined.