1、ACCURATE MARKING: This aluminum triangular ruler take woodworking to a new level of accuracy by achieving high accuracy marking with carefully designed angles 2、STURDY MATERIAL: The triangular ruler is made of aluminum alloy to ensure long lasting performance and robustness, and to remain reliable in continuous use 3、ANGLE APPLICATION: Simplify your woodwork with the 45° edge marking feature, allowing for more accurate and easier marking at one of the most commonly used angles 4、EASY AND EFFICIENT: The simple ease of use of this ruler set it apart from other rulers and is the ideal tool to make your woodworking projects easier and more efficient 5、COMPACT AND MULTI PURPOSE: Small square tool is compact and lightweight, ideal for your work apron, tool belt, or pocket, can be used for quick line marking, checking lines and angles, swiftly setting machine heights, etc., serving as an indispensable tool for carpenters