To add to the on gas air torches there is a 4 page
article in the current “Machinist Workshop” magazine. This is the
October -November issue volume 22 number 5. It may be found at
magazine counters in the and maybe in the UK(?)
The article compares the Swedish made Sievert (common in most of the
world except the US) with the US made Goss torch.
This article is not intended for jewelry scale work but some of the
torch tips are good.
This type torch is more commonly used for silver brazing and soft
soldering by artisans world wide than oxy- fuel torches.