Buttonholer

A buttonholer is a tool or attachment used in sewing, designed specifically for creating buttonholes in fabric. It can be a standalone device, a feature on sewing machines, or an accessory that attaches to a machine. There are various types of buttonholers, including manual and automatic options, but their main function remains the same: to cut and stitch a precise opening in the fabric that is the right size for a button to pass through.