The Buttonhole & Eyelet cutters make sharp, clean cuts for a professional finish to buttonholes and more. The circular cutter can be used for cutting out keyhole buttonholes, eyelet embroidery, punching suede and is so necessary for punching holes in embroidery templates. Made with hardwood handles and hardened steel blades. 3mm circular cutter and 12mm flat cutter. For buttonholes smaller than 12mm, place half of the buttonhole on the wooden block and cut in two steps.