I bought an industrial blind stitch about 6 years ago from a lady that used to own a sewing alteration store. Anyways, she gave me a bunch of threads and notions. After all this years I realized that I have way to much needles and decided to list some here. Unfortunately I don't know anything about this needle either. I did a google search and found some information there. I used it in my Juki and Singer and didn't notice any difference at all compared to other brands. Hope it helps :/