This stainless steel wing divider, also known as a scratch compass, is an important tool to keep in your leather tool kit. The incredibly sharp points mark the edges of your leather to mark where to punch holes for setting rivets, installing grommets and more. The spring-loaded adjustable screw makes it easy to set your desired width from 0-20mm. This invaluable tool will speed up and streamline your leatherworking, increasing your productivity and the quality of your leather goods.