【Stainless Steel & High Quality】: This stainless steel marking ruler set is made of high quality stainless steel, rigid, not easy to break, durable and rust resistant, don't worry about the dimension of the metal square tool will come off easily 【High Precision】: Ultra precise wood measuring tools with holes are clear, accurate, versatile and easy to use for woodworking, CNC machining, make marking convenient and highly efficient 【Wide Range of Uses】: The metal measuring ruler is flexible and easy to use. It can write horizontal, vertical, long, short, parallel and right angle lines. It is a perfect helper for artists, architects, engineers, carpenters who make diagrams and drafts, can meet various marking needs 【Easy to Use】: Our metal protractor for woodworking with a precise stop, is a combination square for marking or measuring, which is simultaneously set at each scale position. Just locate your pencil or then draw the absolute precision line you get