what is the difference between coverstitch and overlock

The history of automotive sewing machines dates back to the early 20th century, coinciding with the rise of the automobile industry. Initially, seat covers and upholstery were crafted by hand, which was both time-consuming and inconsistent in quality. As automobile production ramped up during the mid-1900s, the demand for more efficient manufacturing processes led to the development of specialized sewing machines designed to handle heavy fabrics and intricate designs.

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.

2. Professional Finish The parallel stitching produced by dual needles gives garments a polished and professional look. This is especially beneficial in sewing hems, where two lines of stitching can add a decorative touch while also strengthening the hem.

Not all sewing machines are created equal when it comes to sewing leather. Ideally, you should use a machine that has a heavy-duty capability. Machines that come with a walking foot are particularly beneficial, as they help to move the leather evenly through the machine. For needles, opt for a leather needle or a heavy-duty needle, as these are designed to pierce through thick materials without breaking. A needle size between 90/14 and 110/18 is usually appropriate for most types of leather.