As the name suggests, a single stitch leather sewing machine is designed to create a single stitch per cycle, using a locking stitch mechanism that produces durable seams. Unlike multi-stitch machines, which might generate various stitch styles and patterns, the single stitch model focuses on creating a robust, reliable seam that stands up to the stresses of daily use. This is particularly important in leatherwork, where the materials often endure significant wear and tear.

To begin using a double needle coverstitch, you will need a sewing machine that offers this function or an attachment compatible with your existing machine. Select the appropriate needles — double needles usually come in various widths and sizes for different fabric types. Ensure you use the correct thread (generally a combination of regular sewing thread on the top and a stretchy thread in the loopers).

This stitch is particularly favored in the production of activewear, lingerie, and other garments made from stretchy materials. For instance, when sewing leggings or fitted tops, the overlock chain stitch allows for comfortable wear without compromising on durability. Additionally, it is commonly used in the construction of t-shirts, where the need for flexibility and a clean finish is essential.