Home > Sewing Machines, Craft Cutters & AccuQuilt > Bernina Sewing Machines > Bernina Sergers Sergers are the ideal machine for sewing decorative and finishing stitches on linens, formal wear and stretchy fabric. The differential feed improves sewing results on thick or thin fabrics to give you a perfect finish. Create a wide range of cover stitches on all types and weights of fabric for both decorative and constructive applications. Give a professional look to your next project with serged seam finishes. Seams lie flatter and look better with the use of a serger. Home décor projects will also benefit the use of a serger for rolled hems, secure seams and differential feed.