A serger, commonly referred to as an overlock machine, combines three functions into one simple operation-stitching a seam, trimming the excess seam allowance and overcasting the edge of your fabric-allowing you to achieve professional quality stitching in a short amount of time. They are very fast! You can quickly repair torn seams, make a pair of PJs as your child grows, or whip up a quick gift for any occasion. You can use from two to eight spools of thread depending upon the model. Some of the things you can do with a serger:
Manual:
https://cdn.medion.com/downloads/anleitungen/bda_md19077_ie_uk.pdf