What fitting is this? Where can I get one?

[meltedcheese]

Can anybody tell me the name of the fitting that the spanner is on in this photo or where I can buy this from? The tip on mine has broken

http://www.mig-welding.co.uk/sip130/unscrewing-wiretip.jpg

Thanks
Chris

 

[the repair man]

If your putting a steel liner in, you don't need it.
There is a sip parts drawing / wiring diagram in the sip section on here I think.
I will check tomorrow, I think I have a couple of them if you decide you need it.

 

[meltedcheese]

If you don't mind that would be great, if I don't have it gas will leak out of the 3 way fitting I have. PM me with a price etc, thanks.