Differential Feed
The MyLock 644D is equipped with a unique differential feed device designed to prevent fabrics from puckering or stretching.
Lower Looper Pre-Tension Slider
Easy to adjust the looper thread tension for rolled hemming.
Easy Lower Looper Threading
By rotating the thread guide, the lower looper thread guides will become accessible to make threading easier. The lower looper thread guide will return to its original position automatically by turning the handwheel.
Easy Upper Knife Release
Upper knife can be quickly and easily deactivated by the slide of a knob.
Features
2, 3, or 4 thread overlock
Lay-in thread tension dial
Seam width: 1 - 5mm seam length3.3mm (narrow), 7.5mm (wide) 2.0mm Rolled hem
Slim foot
Handy needle threader
Convenient thread cutter
Easy rolled hem change-over
0.5 - 2.2 differential feed ratio
Easy upper knife release
Adjustable cutting width: 3.1 - 5.1mm
Easy lower looper threading
Differential feed
Lower looper pre-tension setting slider
Changeable thread guide
Front and back needle guard
Retractable upper knife
Numbered tension dials
Color-coded thread guides
Snap-on presser feet
Serger Flat Bed
Skeleton Body Construction
Lay-in Tension Dial
2, 3, and 4 Thread Convertible
Maximum Speed: 1,300 spm
Incorporated Tension Release Device
Incorporated EZ Change Rolled Hem
Adjustable Foot Pressure (Adjusting Screw)
Snap-on Presser Foot
Feed Adjustment: Dial on Belt Cover (with Window)
Differential Feed Adjustment: Dial on Belt Cover (with Window)
Dial Cutting Width Adjustment
Alined Spool Pin Spool Stand
Carrying Handle: Part of Machine Body
Thread Cutter
Length of Feet: 1 to 5 mm
Differential Feed Ratio: 0.5 to 2.25
Cutting Width: 3.1 - 7.3mm
Waste chip Box
Accessory Box
Foot Controller
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