Features 1、HIGH ACCURACY RULER: The 3D multi angle square ruler use fine CNC machining and clear engraving to ensure a machining accuracy of 0.1mm and an angle accuracy of ±0.004°. Easily mark 45° and 90°. 1/16in hole design ensure parallel rows 2、ACCURATE ANGLES AND QUICK MEASUREMENT: Compact carpenter square include a 1/16in diameter marking hole and a 6 hole design for drawing angles from 22.5 to 90 degrees. Also include preset angles of 22.5°, 30°, 45°, 60°, and 67.5° with corresponding dia 1/4 holes for angle pins, enabling easy and accurate angle drawing 3、STRONG CONSTRUCTION: Woodworking square protractor is made of excellent aluminum alloy, has good durability and wear resistance, is a long life tool in woodworking projects 4、VERSATILE TOOL: Perfect for woodworking projects, this triangular ruler is designed for high accuracy measurement and marking. Suitable for enthusiasts, carpenters and professionals 5、APPLICABLE SCENARIO: 3D multi angle woodworking square ruler can be used for marking lines, measuring 45 and 90 degree angles, easy to disassemble, and widely used in woodworking Specification Item Type: 3D Multi Angle Square Ruler Material: Aluminum alloy Package List 1 x Triangular Ruler