Machines & tools

A presser foot with a guide bar that runs along a folded hem edge, positioning the needle to catch only a thread or two for an invisible hem.

A stitch pattern combining several straight stitches with a single zigzag jog, used with a folded hem to catch fabric almost invisibly from the right side.

Fine-tuning the small screw on the bobbin case that controls how much resistance the lower thread meets, used to correct or balance stitch formation.

Small scissors, sometimes with an adjustable screw stop, designed specifically to cut open the center of a stitched buttonhole without overcutting.

A narrow, dense zigzag stitch sewn in a rectangular path with bar tacks at each end to create a reinforced opening for a button.