The Millepunti by Necchi DF4 has two needles and can be used as 3 or 4 thread overlocking incorporating the differential feed ratio, adjustable from .05 to 2.25, which provides increased control for handling all types of fabrics. Threading is simple, with colour coded guides and a self-threading lower looper. The DF4 switches to rolled hemming without changing the needle plate.
Features: Sewing Speed - 1500 Stitch Length - 5mm Diff Feed Ratio - 0.5 - 2.25 Seam Width - 5.7mm Rolled Hem - 2.0mm Retractable Upper Knife €“ Yes