For intermediate users or those seeking more versatility, prices generally range from $400 to $1,200. These machines often boast a wider selection of stitch patterns, more embroidery options, and enhanced durability. Many also come with additional accessories like multiple presser feet and extension tables, making them an excellent choice for anyone looking to expand their sewing capabilities.

Lock stitch is a sewing technique that involves interlocking two threads—one from the needle and the other from the bobbin—to create a strong seam. This method is particularly advantageous for securing the seams of jumbo bags because it provides a tight, secure closure that can withstand significant tension and pressure. Unlike other stitching methods, lock stitch produces a consistent and uniform seam, reducing the likelihood of bag failure due to seam separation.

The Practical Benefits