1.29mm height of presser foot lift 2.Big feed force basing on top and bottom feed. 3.Sewing thickness 0-29mm FGB6-180-1 extra heavy-duty, compound feed and walking foot,lockstitch sewing machines ApplicationsFGB6-180-1 extra heavy-duty, compound feed and walking foot, lockstitch sewing machines are suitable for sewing heavy duty material such as canvas, PE material and synthetic material;Suitable ...