- Excellent Aluminum Alloy Material: Crafted from high quality aluminum alloy, this carpenter square layout tool offers durability and accuracy. The slick design and precisely etched markings ensure easy and accurate measuring for carpentry projects. - Multifunctional Design: This versatile carpenter square combines the functions of a rafter square and a protractor. It enables measuring angles, marking layouts, and determining vertical and horizontal readings as needed. - Ergonomic and User-Friendly: Designed with an ergonomic shape and clear resolution markings, this multifunctional rafter square provides ease of use and precise measurements. It is an indispensable tool for engineers and woodworking enthusiasts. - Wide Application Range: Specifically designed to meet the needs of engineers and carpenters, this triangle ruler rafter square has a wide range of applications. Its highly visible markings and user-friendly features support efficient measuring and layout tasks. - Use scenarios: - Framing roofs and cutting rafters where accurate angle measurement and right-angle layouts are essential. - Building cabinets or furniture requiring precise cut lines and true vertical and horizontal alignment. - Laying out stairs, shelves, or trim work with consistent angles and reference marks.