Then, using a Multi-zigzag stitch, as wide as possible, and a short stitch length, I stitch around the 4 sides of the hole, straddling the raw edge of the coverall fabric. I want to make sure that I have the raw edge of the coverall fabric tacked down good to keep it from fraying. I use a light to medium pressure on the presser foot, and leave the feed dogs up. After the initial stitch completely around the hole, I place additional stitch lines further away from the hole until I’m sure that I’ve stitched down the raw edge of the denim repair fabric. I do this in one of two ways. Either by turning the coveralls to make a sort of spiral stitch going around and around, or by going forward and backward on each side of the hole to build stitches outward. It depends on how hard the garment is to turn. By using a light pressure on the foot, I can override the feed dogs when needed to move the fabric sideways while stitching.