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The zigzag stitch was a groundbreaking innovation in sewing technology. Unlike the traditional straight stitch, the zigzag stitch allows for greater flexibility and adaptability. It can be used for various applications, including finishing seams, appliqué work, and stretch fabrics. The versatility of the zigzag stitch is particularly advantageous for quilters, garment makers, and crafters who require different stitch types for their projects. With a precision zigzag sewing machine, users can easily adjust stitch width and length, ensuring the perfect setting for each unique fabric and design.

Overall, heavy duty sewing machines are built for longevity, with all-metal construction and premium internal components. They can sew for years without issues and only need periodic oiling. By contrast, plastic gears and components in standard machines wear out more quickly. Professional heavy usage requires the durable construction of true heavy duty machines.

1. Walking Foot Mechanism A walking foot or compound feed mechanism is essential as it helps move layers of leather through the machine evenly. This feature is particularly useful for sewing thicker materials, preventing the layers from shifting out of place.