This is an overall question which has been lurking for a while so here goes; does any one have the specs for Bing needles and the taper? The early needles had lines around the circumference near the position clip. I have seen ones with one line and up to four lines in two groups of two etc...later needles have a numbering system which also needs to be explored...
Many Thanks,
Tom Brosius
I have had pretty good experience with the Bing Agency in Kansas answering these types of questions. 316.862.5808. If you call and get info, I'm sure there are lots of us that would like to know the answer, please post.