Juki MO-3700 Series High-speed Overlock / Safety Stitch Machines Thorough consideration has been given to ease of operation for the benefit of each and every operator, the machine also helps reduce fatigue. The machine provides consistent thread tension even when running at high speed, thereby contributing to improved productivity. With its low-noise and low-vibration mechanisms, a quiet working environment is assured. The machine has been developed so that soft stitches with a good feel can be created. Easy maintenance.