Applicable: 1. Thin and medium-thick knitted fabrics. 2. It is used for sewing items such as the shoulders of T-shirts and the crotch of underwear. Features: 1. Direct drive servo design makes the machine operate more quickly, save electricity and generate less noise. It is equipped with a fabric shavings suction device to optimize the workshop environment. 2. The needle stop position is accurate and it is equipped with a safety protection mechanism. 3. Ultra-fine spout, only 148mm, suitable for various small tubular sewing operations. 4. The elastic floating presser foot bottom surface, combined with the improved fabric feeding teeth, is particularly suitable for thin fabrics, with smooth and perfect stitching. 5. The adjusting screw can make precise fine-tuning for the gap between the lower knot hook and the sewing needle. 6. Loosen the screw and move the connecting rod up or down to change the fabric feeding amount of the fabric feeding teeth. 7. The differential ratio of the fabric feeding teeth can be adjusted simply by moving the wrench, which is simple and convenient.