General description This multifunction carpenter square set includes two metric triangle rulers, measuring 18cm and 30cm. Designed with a matte black finish to prevent glare, these rulers are corrosion-resistant and durable, ensuring they won't easily break. The square features no sharp edges, making it safe to handle. Technical specifications Material: High-quality aluminum alloy Dimensions: 18cm triangle ruler: 18 x 18cm; 30cm triangle ruler: 30 x 30cm Design: Thicker edge for easy marking Wide Use This carpenter square serves multiple functions, including: Protractor Miter Scribe saw guide Framing square Ruler Usage The triangle ruler allows for quick and accurate marking of cutting lines. You can use it directly with a saw against the square for both cross cuts and angled cuts, utilizing the etched scale for precision.