<h2>Aluminum Alloy 90° Square Right Angle Ruler for Carpentry &amp; Construction</h2> <p>Whether you're framing walls, laying out joints, or marking precise cuts, this <strong>L-Shape 90° Square Right Angle Ruler</strong> delivers rock-solid accuracy every time. Crafted from lightweight yet durable <strong>aluminum alloy</strong>, it resists rust and everyday wear — making it a dependable addition to any toolbox, workshop, or job site.</p> <h3>Key Features</h3> <ul> <li> <strong>Perfect 90° Accuracy:</strong> Engineered L-shape guarantees true right-angle measurements for framing, carpentry, and construction layouts.</li> <li> <strong>Rust-Resistant Aluminum Alloy:</strong> Lightweight and sturdy build that withstands heavy workshop use without corroding.</li> <li> <strong>4 Size Options:</strong> Choose the size that best suits your project needs.</li> <li> <strong>Clear Scale Markings:</strong> Easy-to-read metric graduations for fast, accurate marking and measuring.</li> <li> <strong>Smooth Finish:</strong> Silver anodized surface for comfortable handling and clean contact lines.</li> <li> <strong>Versatile Use:</strong> Ideal for woodworking, building framing, tile laying, metalworking, and general DIY projects.</li> </ul> <h3>Specifications</h3> <table> <tr> <th>Size</th> <th>Dimensions (approx.)</th> </tr> <tr> <td>1# (600mm)</td> <td>60 × 22 cm / 23.6 × 8.7 in</td> </tr> <tr> <td>2# (500mm)</td> <td>50 × 22 cm / 19.7 × 8.7 in</td> </tr> <tr> <td>3# (300mm)</td> <td>30 × 13.5 cm / 11.8 × 5.3 in</td> </tr> <tr> <td>4# (250mm)</td> <td>25 × 12.5 cm / 9.8 × 4.9 in</td> </tr> </table> <ul> <li> <strong>Material:</strong> Aluminum Alloy</li> <li> <strong>Color:</strong> Silver</li> <li> <strong>Angle:</strong> 90°</li> </ul> <h3>Package Contents</h3> <ul> <li>1 × L-Shape 90° Square Right Angle Ruler (size of your choice)</li> </ul> <p><em>Note: Due to monitor brightness and lighting conditions, the actual color may differ slightly from product images.</em></p> <p><strong>Made in Mainland China.</strong></p> <h3>Related Products You May Like</h3> <ul> <li><a href="/products/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy">Air Compressor Pressure Gauge 0-10/0-12/0-25 Bar | DIY Tool</a></li> <li><a href="/products/garden-pruner-shears-secateurs-bonsai-fruit-trees">Garden Pruner Shears – Secateurs for Bonsai &amp; Fruit Trees</a></li> <li><a href="/products/18-pc-basswood-carving-blocks-whittling-wood-kit">18 Pc Basswood Carving Blocks – Whittling Wood Kit for Carvers</a></li> </ul> <p>Learn more: <a href="https://www.osha.gov/personal-protective-equipment" target="_blank" rel="noopener">OSHA on personal protective equipment</a></p> <h3>Frequently Asked Questions</h3> <h4>Q: What sizes are available for this aluminum square right angle ruler?</h4> <p>A: This carpenter square ruler comes in four sizes: 250mm (25×12.5 cm), 300mm (30×13.5 cm), 500mm (50×22 cm), and 600mm (60×22 cm). Select the size that best suits your framing or woodworking project at checkout.</p> <h4>Q: Is this square ruler suitable for professional construction use?</h4> <p>A: Yes. The aluminum alloy construction makes it both lightweight and durable enough for professional carpentry, building framing, tile work, and metalworking. The precise 90° angle ensures accurate layouts on every job site or workshop project.</p> <h4>Q: How do I care for and maintain this aluminum angle ruler?</h4> <p>A: Simply wipe the ruler clean with a dry cloth after use. The aluminum alloy material is rust-resistant, so it requires minimal maintenance. Avoid storing it where it could be bent or subjected to heavy impact to preserve its precision.</p> <script type="application/ld+json">{"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "What sizes are available for this aluminum square right angle ruler?", "acceptedAnswer": {"@type": "Answer", "text": "This carpenter square rule