General description Crafted from sturdy aluminum alloy, this rafter square tool is built to last, providing long-lasting durability for all your measuring and layout needs. Accurate scale markings ensure precise and convenient measurements, making your projects more efficient. With its innovative design, this triangular ruler protractor allows for easy and precise angle and layout measurements in engineering and woodworking projects. Rotate effortlessly at 90 or 180 degrees, enabling precise and accurate flatwork operations, adding convenience. Equipped with a jig block for accurate repetitive markings, it is ideal for projects that require consistent and accurate measurements. Technical specifications Material: Aluminum Alloy Includes: 1 x Rafter Square Tool, 1 x Accessory, 1 x Knob Screw