Originally Posted by cheryl222
I bought a Singer 403 and a Singer Stylist 457. Both have what looks like a class 66 bobbin plastic bobbin. I bought a couple of packs of class 66 at Walmart (metal) and they won't work. Am I wrong in thinking these machines take the class 66?
Did you try sewing with the 403 but with the plastic bobbin? I thought the 403 took metal bobbin but maybe a class 15. I don't know as I don't own one. I do have a 457 that I haven't played with but that may be a plastic bobbin. I know when I bought it, the seller gave me a box of both plastic and metal bobbins.