It’s used to *sew, trim, and overcast fabric edges all at once* to prevent fraying and give a clean, professional finish. Tailors and garment makers use it for the seams you see inside clothes.
What makes it different from a regular sewing machine:
Cuts and stitches It has a blade that trims excess fabric as it sews.
Multiple threads Uses 3, 4, or 5 threads to create a stretchy, durable seam that won’t unravel.Fast Made for high-speed, continuous sewing on large amounts of fabric.