Empire Stair Gauge is designed for making fast, repeat angle cuts on rafters and stairs, ensuring precision and efficiency in your carpentry projects. Crafted from solid brass, this tool features sure-grip thumb screws that securely attach to any Empire framing or carpenter's square, as well as rafter squares. Its durable construction and easy attachment make it an essential accessory for professionals and DIY enthusiasts alike, helping to achieve accurate measurements and cuts every time. Model Number: 105