1. It is suitable for buttonhole sewing and locking of various knitted, cotton, chemical fiber fabrics, especially for sleeve keyhole operation.
2. Set the speed of the first 5 needles through the operation panel to realize slow start and effectively prevent the occurrence of wire breakage when the machine starts at high speed;
3. Through electronic control, the last few stitches can be sewn to prevent the buttonhole from running out of thread;
4. Equipped with 30 different standard keyhole shapes.