General description This CSPARKV Multifunction Carpenter Square set includes two metric triangle rulers, measuring 18cm and 30cm. Designed with a matte black finish, these rulers are glare-free, 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 Sizes: 18cm triangle ruler (18 x 18cm), 30cm triangle ruler (30 x 30cm) Design: Thicker edge for enhanced marking accuracy Wide Usage This carpenter square serves multiple functions, including: Protractor Miter Scribe saw guide Framing square Ruler Usage The triangle ruler allows for easy marking of cutting lines. Its thicker edge design enables direct use with a saw against the square for both cross cuts and angled cuts, utilizing the etched scale for quick and precise markings.