[PREMIUM ALUMINUM ALLOY CONSTRUCTION] This professional-grade triangle ruler is crafted from thickened aluminum alloy,offering superior durability and precision for all your woodworking needs. The rust-resistant material long-lasting performance while maintaining accuracy for precise measurements and markings in any workshop. [MULTI-FUNCTION ANGLE MEASUREMENT] Designed for versatility,this ruler features 30°,45° and 90° angle guides with clearly marked scales for accurate positioning. The innovative design allows for both angle measurement and straight-scribing,making it an essential tool for framing,cabinetry,flooring installations and other precision woodworking applications. [PRECISION MARKING SCRIBING] Engineered with a specially designed protruding and right-angle side,this ruler enables effortless marking on various materials. The smooth surface prevents material damage while the clear scale markings accurate measurements every time,for detailed woodworking projects requiring exact precision. [ERGONOMIC USER-FRIENDLY DESIGN] The lightweight yet sturdy construction provides comfortable handling during extended use. Thoughtful features include a hanging hole for convenient storage and portability,allowing you to keep this essential tool within easy reach on your tool belt or workshop wall. [PROFESSIONAL DIY APPLICATION] Whether you're a professional carpenter,woodworker,or DIY enthusiast,this multi-functional triangle ruler is ideal for furniture making,home renovations,craft projects and more. Its combination of durability,precision and versatility makes it a must-have addition to any toolkit., Manufacturer: WDWDW