Why use a overlocker and not a sewing machine

Sewing machine or overlocker ?
You can achieve similar seam finishes on your sewing machine - by using an overlock stitch or close zig zag stitch. However, an overlocker does it quicker, neater and of course, in one-step. Todays overlockers can also be used for many other types of sewing, not just to complete straight seams. For instance, the cutters can be switched off so that you can do applique, you can gather, hem in a variety of ways (depending on the foot used), make pin tucks, create decorative braid and add elastic easily.