Professional tools: The woodworking angle set is a precision tool for measuring and drawing, featuring a 180 mm metric metal scale. It meets industry standards for accuracy, with an exact 90-degree angle and clear markings. The scale is marked on both sides and includes angles and measurements for added convenience. Premium quality: This 18 mm angle set is constructed from durable aluminum alloy with a solid build. The surface features a black painted finish that resists oxidation, enhancing its durability. Multifunctional square ruler: This woodworking angle can be used as a protractor, saw guide, construction angle, miter, frame angle, and ruler. It is suitable for angle measurement, angle control, saw alignment, setting saw teeth, and marking tasks. Practical and convenient: With this square ruler set, you can simplify measurements and avoid carrying multiple tools. It includes angle holes of various sizes to assist with drilling tasks. Service guarantee: If you experience any quality issues within 30 days of purchase, please contact us for a full refund. Customer satisfaction is our priority.