Hexagon Design The precisely engineered hexagonal plane design allows the stair gauges to fit securely along the edge of your framing square. This ensures the ruler remains perpendicular to the material for accurate measurement and marking. The enhanced contact and clamping stability help prevent movement during use, delivering consistent and precise results every time. Bottom Thread Design A practical bottom threaded design keeps the carpenter square firmly in place when set on a work surface. This added stability helps avoid slips or shifts, ensuring reliability during critical layout work. Quality Construction Crafted from aluminum alloy, these tall stair gauges offer exceptional strength without unnecessary weight. The surface is treated with a durable oxide layer process, making them resistant to wear and corrosion for longlasting performance in professional and DIY applications. Reasonable Size for Versatile Use Compact yet functional, these gauges are ideal for stairway longitudinal beam layouts, rafter layouts, and other precision woodworking projects. They work smoothly on all materials, even when edges feature gaps or irregularities, and store easily without taking up excess space in your toolbox or workshop. Practical Applications 1. Aligning and marking stair stringers with consistent accuracy. 2. Laying out rafters for roof framing projects efficiently. 3. Creating reliable measurements on wooden beams or panels where precise alignment is critical. This combination of thoughtful design, durable materials, and dependable performance makes these stair gauges a professionalgrade tool for accurate framing square use in a wide range of carpentry and construction projects.