The high ridge in the centre of the foot causes loops to form when using zig zag. This creates tailor’s tacks, but this foot is also useful for faggoting and fringing.
Tailor’s tacks can be used for marking seam lines and darts. The loops can also be used for embellishing, imitation hemstitch (fagotting), fringe, 3D effects, toweling embroidery and chenille appliqué. The stitches are formed over the ridge in the foot center, thus producing loops. Tailor tack foot no. 7 is only suitable for zigzag stitch set to 2-5mm stitch width.