2. Neat Appearance The lock stitch produces a clean and professional finish, with minimal thread bulk. This quality is particularly important for garments where aesthetics are paramount.

As technology continues to advance, the future of high-speed overlock sewing machines appears promising. Innovations such as computerized controls, integrated cutting systems, and enhanced automation are expected to further streamline the sewing process. The integration of sustainability practices, such as fabric-saving features and energy-efficient operations, will also likely gain traction as the industry shifts towards more environmentally friendly practices.

2. Machine Specifications The complexity of the machine significantly affects its price. For instance, machines with automatic controls, multiple sealing options, and those that can handle different bag types typically come at a higher cost. Features such as adjustable speed settings, durability for heavy-duty use, and ease of maintenance also contribute to the overall price.

When it comes to sewing leather, the type of thread you use is just as important as the needle. Polyester or nylon threads are highly recommended as they provide strength and durability. Avoid cotton threads, as they can easily break under tension. For added strength, consider using thicker thread, such as a 30 or 40 weight, but ensure that your machine can handle it without jamming.