- Durable Aluminum Alloy Construction: Crafted from premium aluminum alloy, this stair tool features an anodized surface treatment that enhances durability, making it resistant to wear and erosion. It is specifically designed for professional carpentry and DIY projects, ensuring long-lasting performance across various measurement tasks. - Enhanced Measurement Visibility: The stair tool boasts clear and precise scale markings that are easily visible through the groove when the ruler is fully inserted. This design significantly improves measurement visibility, allowing for accurate and efficient measurements, which is crucial for professional carpentry and construction work. - Innovative Hex Design: Unlike traditional round knobs, this square frame stair tool incorporates an innovative hex design. This feature simplifies the alignment of measurement points, enabling faster and more accurate adjustments. Enjoy a smoother workflow and improved precision, making it an essential tool for any woodworking or construction project. - Versatile Applications: This stair tool is highly versatile, suitable for a variety of tasks such as stair layouts, beam layouts, repetitive angle marking, and saw guide cutting. It securely clamps onto most framing squares and quick squares, providing convenience and flexibility for different woodworking and construction tasks. Its adaptability makes it an indispensable tool for both professionals and enthusiasts. With a focus on durability, visibility, and ease of use, this stair tool is engineered to meet the demands of any project, ensuring reliability and accuracy in every measurement.