General description High-quality aluminum alloy square ruler protractor designed for precise angle measurements. This multi-angle 3D measuring ruler features CNC precision machining and laser-engraved scales, making it an essential tool for woodworkers and craftsmen. Technical specifications Material: Aluminum Alloy Color: Blue Angles: 22.5°, 30°, 45°, 60°, 67.5°, 90° Measurement allowed error: +/- 1-3 cm Compatibility and accessories Includes 1 x Woodworking square ruler tool Includes 1 x wrench (random colors, specified color not accepted) Usage This ruler is ideal for marking and measuring angles in woodworking and crafting projects. Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.