<h3>Key features</h3><ul> <li>Dual-Side Engraved Scales - Permanent frost-white graduations for common/hip/valley/jack rafters + 45° protractor lines, visible in low-light workshops.</li> <li>Engineered from High-Strength Aluminum Alloy:Built to withstand the jobsite, this square is crafted from a robust, thickened aluminum alloy with a protective oxidation-resistant finish. It guarantees rust-proof, weather-resistant performance and exceptional durability without the weight of steel.</li> <li>Your All-in-One Layout &amp; Measuring Solution:Go beyond basic squaring. This versatile tool efficiently handles roof pitch calculation, 45-degree angle marking, circular saw guiding, and level checking. It consolidates multiple tools into one, saving time and reducing errors in framing, trimming, and DIY projects.</li> <li>User-Focused, Pocket-Safe Design：Featuring smoothly polished, rounded edges for comfortable handling and safety. Its lightweight, compact profile fits effortlessly into tool belts or pockets, and includes a convenient hanging hole for easy, organized storage.</li> <li>Lifetime Accuracy Guarantee - 12-month replacement warranty + precision calibration support. Resists corrosion, drops &amp; job-site abuse.</li> </ul><p>Professional Precision in the Palm of Your Hand Upgrade your toolkit with our 7-inch Aluminum Rafter Square—designed for accuracy, durability, and everyday versatility. Whether you’re framing a roof, cutting trim, or tackling weekend projects, this double-sided engraved square delivers clear, dependable measurements every time. Engineered for Accuracy &amp; Long-Term Use Crafted from aircraft-grade aluminum with a matte anti-oxidation finish, this square resists rust, wear, and weather exposure. The thickened die-cast construction maintains consistent 0.1mm precision, outperforming flimsy stamped-metal alternatives. Frost-white engraved scales won’t fade or rub off, ensuring readability for years. 5 Tools in 1 – Work Smarter, Not Harder Mark Square &amp; 45° Lines – Quickly mark perpendicular and angled cuts. Measure Roof Pitch &amp; Angles – Use engraved rafter tables (common, hip, valley, jack) for fast layout. Guide Your Circular Saw – Provides a straight edge for clean, accurate cuts. Check Level &amp; Plumb – Integrated spirit level vial adds on-site verification. Scribe &amp; Transfer Measurements – Sharp, durable edges allow easy marking on wood, tile, or metal. Designed for Real-World Use The </p><p>Free shipping on orders $50+. 30-day hassle-free returns.</p>