Professional 4 Thread Serger Overlock Sewing Machine 4-Line w/ Foot Controller 110V 100W 23*23*49cm for Both Domestic And Industrial Use

Made to Last: This product is made of cast iron, treated with a paint spraying process, which is abrasion-resistant, rust-resistant, and scratch-resistant, and not easy to corrode and deform, ensuring a long service life. Adjustable Needle Pitch: This product allows you to adjust the needle pitch between 0.1-0.13 inches. By adjusting the stitch width, you can create a flat serged seam. High Efficiency: Up to 100W power provides strong power, making its maximum sewing speed up to 1200 stitches/minute, which greatly improves the sewing speed of the edge and effectively enhances the working efficiency. Four-line Design: The width of the four-line design locking edge is up to 0.18-0.22in, compared with the three-line locking edge, it locks the edge better, is more compact and solid, and is not easy to take off the line. Adjustable Design: Each bobbin holder on the body corresponds to a thread, and you can rotate counterclockwise to loosen the stitch tension and clockwise to tighten the stitch tension to meet the sewing edge needs of different fabrics.