- Long lasting durability: Made from wear-resistant, sturdy material for strength and safety. Built to resist breakage and maintain marking accuracy over time. - Versatile uses: Multifunctional angle and arc marking tool enables accurate 90-degree bending of square tubes and scribing rounded corners. Also allows measuring angles on floating beds and round tables, boosting work efficiency. - Precision and readability: Features a vernier design with clear angle and radian scales for precise measurements and markings. Suitable for right, rounded, or special angles to ensure consistent accuracy. - Enhanced comfort and control: Ergonomic angle and arc marking ruler with a sturdy lock. Comfortable handle reduces fatigue and helps maintain precision during use. - Professional reliability: Designed for both professionals and craftsmen, providing dependable performance across workshops and on-site tasks. Compatible with a range of materials and applications. - Use scenarios: 1) Metal fabrication: mark and bend square tubes at exact 90-degree angles. 2) Woodworking/furniture: scribe rounded corners on tabletops or curved panels. 3) Layout tasks: precise angle references on floating beds and round tables.