Features High Accuracy: Clearcutness laser scale and 1mm accurate hole design ensure precise measurements and markings, reducing errors in woodworking projects. Durable Aluminum Alloy: Crafted from anodized aluminum alloy, this framing square offers high hardness and exceptional durability, ideal for long-term use in woodworking. Ergonomic 4 Hole Design: The 4-hole handle design enhances ergonomics and grip, providing comfort and control for smoother woodworking tasks. Multi-Functional: Versatile tool for drawing circles, scribing lines, measuring angles, and marking hinge holes, offering a wide range of functions for carpentry and woodworking projects. Convenient Marking: Marked hole design and easy-to-read laser scale facilitate precise marking and measuring, enhancing efficiency in woodworking tasks. Specification: Item Type: Aluminum Framing Woodworking Squares Material: Aluminum Alloy Metric Scale: Approx. 300mm / 11.81in Base Aperture: Approx. 20mm / 0.80in Base Length: Approx. 180mm / 7.10in Arc Diameter: Inner Diameter Approx. 40mm / 1.57in, Outer Diameter Approx. 60mm / 2.36in Package List: Item Type: Aluminum Framing Woodworking Squares Material: Aluminum Alloy Metric Scale: Approx. 300mm / 11.81in Base Aperture: Approx. 20mm / 0.80in Base Length: Approx. 180mm / 7.10in Arc Diameter: Inner Diameter Approx. 40mm / 1.57in, Outer Diameter Approx. 60mm / 2.36in Note: Match to the right size before use Package List 1 x Aluminum Framing Woodworking Squares 1 x Wrench 1 x User Manual