I cannot find much on them either. I have a Fiskars and honestly do not consider it much of an ax. I find it way to thin, it is not ground properly and the hollow handle gives it a weird balance. The wrap around head join also does not allow much tuning of it either. It is indeed durable and as a ax shaped object better than nothing but I cannot see any way to turn it into a decent hand ax. Good for tent pegs and some casual fire prep I suppose but not really an ax I would ever carry to use seriously.