Jack JK-T1790BS-3 Buttonhole Machine Product No: JK-T1790BS-3 This electronic lockstitch buttonhole is a multifunctional, electronic controlled and programmable machine Driven by a servo motor with features such as low vibration = low noise High efficiency creating excellent sewing quality This machine is equipped with an electronic thread tension device to avoid thread breakage, it also has a drop thread which creates a perfect stitch The cooling fan monitors the temperature which lengthens the lifetime of the machine An added function of an LED lamp for lighting. Maximum speed can reach 4200 RPM Readable control panel that makes new patterns easy to update with up to 200 patterns that can be saved on the operation panel or updated by USB port For light and medium fabrics
