The 644D is one of the most advanced Janome overlockers with speeds up to 1300 stitches per minute. It features electronic control, a handy needle threader, and an easy Upper Knife release. An instructional video ensures that you'll be overlocking with professional results in no time.
The 644D has 2 needles and 2, 3 or 4 thread stitching capabilities. Equipped with differential feed, which is adjustable from .05 to 2.25, the 644D provides increased control for handling all types of fabrics and is essential for creative overlocking techniques. And, you can adjust the cutting width of the knives up to 7.3mm, wider than any other MyLock overlocker.
Threading is simplified by colour-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 644D is one of the lowest priced overlockers to have this feature. 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.
Because a lower looper pre-tension control eliminates the need to change tension for rolled hems, you can switch quickly to rolled hemming without changing the needle plate.

Easy Rolled Hem Change Over No need to change the needle plate for rolled hemming. Just slide the needle plate setting knob to the "R" position to switch the chaining finger to the rolled hemming position     2 Thread Overlocking Set your overlocker for 2 thread use by sliding thread guide from 3 or 4 thread position to 2 thread position and attach spreader to right looper     Lower Looper Threading By rotating the threading lever, the lower looper thread guides will be accessible, making threading easy. Turn the balance wheel and the threading lever will return to its original position Differential Feed Adjustment Colour Coded Threading     Retractable Knife The upper knife can be quickly and easily deactivated when not required. Adjustable Cutting Width Easily adjust the cutting width to suit the thickness of the material. An easy way for correcting the seam tension.   Thread Cutter The thread cutter is conveniently located on the side of the machine and trims the thread neatly and easily. Tension Release Lifting the presser foot automatically releases the tensions which allows you to easily draw the threads through when threading, just like a sewing machine.

Standard Accessories: Overlock Foot (standard) Thread Stripping Discs Needle Plate (standard) Spool Nets (4) Spool Caps (4) Spool Holders (4) Upper Knife (1) Spreader Screwdriver (L, S) Tweezers Lint Brush Spanner Oil Needle Threader Set of Needles Waste Collector

Main Features: 4 Thread Use with 2, 3 or 4 threads Differential feed Easy to follow colour coded threading Easy thread "lay in" top tensions Easy thread lower (left) looper Quick change rolled hem Rolled hem pre tensioner Adjustable foot pressure Pre threaded with 4 white cones Instructional video Soft dust cover Weight 8kg approx.