
What Is a Serger Sewing Machine? What It Does, What It Can’t Do, and Whether You Need One
A serger trims, seams, and overcasts a fabric edge in one pass using loopers instead of a bobbin. Here’s how the stitch is formed, what 3-, 4-, and 5-thread settings are for, the jobs it can’t do, what home models cost, and how to tell if you need one.
