This versatile 12" combination square from Dapetz is an essential tool for engineers, carpenters, and DIY enthusiasts. Made from durable stainless steel, it features engraved metric and imperial measurements for clear readability. The tool includes a protractor with a 180-degree range and a center head, both with built-in spirit levels for enhanced accuracy. Its adjustable design with a brass nut allows for easy tightening and loosening, and the ruler's length can be adjusted. The protractor and center head can be detached for convenient carrying. This multi-purpose measuring tool is ideal for marking parallel lines, center points, measuring angles, and diameters, making it a reliable addition to any toolkit or household.