I agree with Joe. A size 14 needle isn't delicate. I often use 80/12's just because they leave a smaller hole and have never had a problem with them. I've even used them to quilt. I don't think that is the problem. I'd follow Joe's directions and try to figure out why the needles are breaking. I also agree with using a new needle. Even a slight bend can throw things off enough that you break needles.