Features Sturdy aluminium alloy: this angle ruler is made of sturdy aluminium alloy with anodised surface and is resistant to deformation, rust and corrosion. 45 DEGREE TRIANGLE DESIGN Due to the triangular shape, this ruler can be used as a square or protractor to accurately measure 45 degree angles, making it an ideal tool for woodworking, framing and layout work. VERSATILE APPLICATIONS This 45 degree aluminum alloy angle ruler is used to clamp boxes, photo frames, etc., to support the process of square making. PRECISE METRIC SCALE The metric scale on the front and side of the ruler is laser engraved for precise and clear measurements and provides great convenience in woodworking. Convenient to use: with its compact size and lightweight design, this angle ruler is easy to handle and store, making it suitable for both professionals and DIY enthusiasts. Specification: Item Type:45 Degree Angle Ruler Material: aluminium alloy. Model: ES 1. Measuring accuracy: 0.1 mm. Package list: 1 x 45 degree angle ruler. Package List 1 x 45 Degree Angle Ruler