What is a lockstitch machine?

A lockstitch machine is a type of sewing machine that uses two threads—one from the top and one from the bottom—to create a secure stitch by interlocking them. This mechanism is commonly used in garment manufacturing and general sewing due to its durability and versatility. The lockstitch is characterized by its neat appearance and is suitable for various fabrics. These machines are widely used in both industrial and home sewing applications.