The 3D Aluminum Alloy Carpenter Square is a versatile and professional angle ruler designed for woodworking and engineering applications. Made from high-quality aluminum alloy, it boasts high hardness, toughness, and durability, making it wear-resistant and anti-oxidation. This tool features over 10 functions including a drilling template, protractor, dovetail template, and marking gauge for both 45° and 90° angles, making it an essential tool for carpenters and engineers alike.