Heavy-duty sewing machines come equipped with specialized features that enhance their functionality. Many models offer a variety of stitch options, including straight, zigzag, and decorative stitches, catering to a range of sewing styles. Additionally, they often include features such as automatic needle threading, adjustable stitch width and length, and extra-large workspaces, which make handling larger projects much more manageable. These enhancements not only improve the quality of the work but also streamline the sewing process, allowing for greater efficiency and creativity.