Overlock Machine 14sh 654 Fabrics can be stretched optionally or overlocked without stretching. * 3 thread overlock is used to overlock fabrics that have minimal thread shedding at the edges of the cut fabric. * 4 threads (auxiliary stitch that reinforces the sewing steps when overlocking) * Ability to overlock circular fabrics closed with stitches such as trouser legs and shirt sleeves with free sleeve stitching * Ability to hem and edge overlock on thin fabrics (when overlocking the edges of chiffon tulle and scarves, thread tensions can be adjusted process) * adjustable stitch width of overlock stitch width (3 mm - 6.7 mm), stitch step * providing more precise speed adjustment while overlocking thanks to motor speed adjustment with pedal * movable fabric cutting knife. If desired, the fabric cutting knife can be canceled while overlocking and overlocking can be done without the knife.