Hi Guys Alex is gonna check but I think he may have none left.Will look into the welding tips thing.Also found out someone was saying about goof plugs from hozlelock, used to plug holes in irrigation tubing,can see how you could fix em in brush and you drill them to your spec 1,2,3 mm etc.
The 1 mm welding tips are IMO 1mm exactly .I have used 1mm jets before from Cleantech which is no longer trading and the jets were bigger than 1mm their is a big difference. I think the cleantech jets were about 1.2mm i will now only use the clarkes 1mm welding tips as they are a near perfect fit when replacing gardiners standard 2mm jets . Mike