Janome 634D MyLock Serger The Janome MyLock 634D with electronic control is the most advanced MyLock serger. It has 2 needles and 2-, 3- or 4-thread overlock stitching. The Janome MyLock 634D features differential feed ratio, which is adjustable from .05 to 2.25 and provides increased control for handling all types of fabrics and for creating desired special effects. Threading is a breeze with the Janome 634D due to its color-coded thread guides and a self-threading lower looper. Simply lay the thread into the guide, flip a switch, and the lower looper is threaded. The guide is automatically returned to its normal position when you turn the balance wheel. And when you lift the presser foot for rethreading, the thread tensions are automatically released so you can draw the thread smoothly. The MyLock 634D also lets you quickly switch to rolled hemming without changing the needle plate. A lower looper pre-tension stitch eliminates the need to change tension for rolled hems. When you want to make the most of your serging time and yield professional results, the MyLock 634D is unmatched. Lower/upper thread tension dial Right/left thread tension dial Needleplate Side/looper cover Lower looper pre-tension setting slider Balance wheel Stitch length dial Differential feed dial Machine socket Upper/lower knife Cutting width adjustment dial Upper knife release knob Needleplate setting knob Waste chip box Accessory box Included Accessories Standard serger foot Standard thread spool caps (4) Needleplate (standard) Spool nets (4) Spool holders (4) Upper knife (1) Spreader (2 thread sewing converter attatchment) Large screwdriver Small screwdriver Spanner (wrench for changing moveable blade) Tweezers Lint brush Oil Needle threader Set of needles Waste chip box Foot control/power cord Instruction manual Janome Company Warranty 5 Years on Mechanical Parts 5 Years on Electrical Parts 1 Year Labor Offer Available On Orders Shipped To United States Destinations Only