The al-round model can use the original platform speaker by replacing the guide specification group and adding auxiliary accessories to produce standard hemming and sewing. All-in-one model with three functions of pressing the bone, folding the hem and wrapping the edge. The built-in locator completely solves the shortcomings of the locator, such as shaking, difficult installation, unstable positioning, and difficult calibration. Front-mounted bottom line distributor. The bottom line distribution plate is externally placed on the front side of the body, which can easily remove the stranded wire and is easy to adjust. The fine-tuning bobbin thread guide can make finer adjustments for the retraction and tension of the bobbin thread.Suitable for flat sewing and hem sewing of general medium and heavy materials, such as: all kinds of underwear, sportswear seams and hem sewing, etc.