Give a professional look to your next project with serged seam finishes. Seams lie flatter and look better with an overlock stitch. Home decor projects often suggest the use of a serger for rolled hems and secure seams and differential feed. Choose from a 3 or 4 thread look and enjoy the new and easy threading method. The 3034D features two needles and thread with differential feed. Create stitches from 2.0 to 4.0 mm in length. Differential feed ratio of 0.7 - 2.0 gives improved stitch quality. Free arm makes it easier to sew sleeves, trouser legs and other hard to reach places.