The bias binder foot is used to apply pre folded bias binding to the edge of fabric in one easy step it is equipped with a small funnel to fold and guide the binding over the fabric edge before it reaches the needle and can be used with either zig zag or decorative stitches as well as straight stitch 10mm 14mm bias tape can be used take the bind out of this tricky technique how to use the binder foot cut the end of the tape diagonally and insert it into the binder foot push out the end