General description This Multifunction Carpenter Square set includes two metric triangle rulers (18cm and 30cm) made from high-quality aluminum alloy. The matte black finish prevents glare, while the corrosion-resistant material ensures durability. Designed with safety in mind, the rulers have no sharp edges, making them safe to handle. Technical specifications Material: Aluminum alloy Sizes: 18cm triangle ruler (18 x 18cm), 30cm triangle ruler (30 x 30cm) Features: Matte black finish, corrosion-resistant, high hardness, strong toughness Wide Usage This carpenter square serves multiple functions, including: Protractor Miter Scribe saw guide Framing square Ruler It is ideal for various construction and remodeling projects. Usage The triangle ruler features a thicker edge design, allowing you to use it directly with a saw against the square for cross cuts or angled cuts. The etched scale enables quick and accurate marking of cutting lines on your stringers.