You can use a twin needle to sew straight lines like a cover stitch but they can do so much more!
Use a twin needle in conjunction with a pintuck foot to create interesting effects.
Instructions on how to use twin needles which come in sample packs. They come with various sewing machines.
How to thread a machine with two threads, using needle threaders with twin needles and what the stitches look like.
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Sharyn has been sewing for over fifty years and teaching sewing for over twenty years.