Features High Precision: Utilize the high accuracy laser scale and marked hole design for measurements with minimal error, ensuring woodworking precision. Aluminum Alloy: Crafted entirely from anodized aluminum alloy, providing exceptional durability and high hardness for long-lasting use in woodworking projects. Ergonomic 4-Hole Design: The 4-hole handle design offers improved ergonomics, allowing for a more comfortable grip and enhancing overall tool control. Versatile Functionality: This multi-functional tool can be used to draw circles, scribe lines, measure angles, and more, making it an essential addition to any carpenter or woodworker's toolkit. Convenient Measurement: The ruler's accurate hole position and 1mm hole diameter enable easy marking and length measurement, simplifying woodworking tasks. Features: 1、Small Error: Aluminum alloy right angle scribing squares adopts high accuracy laser scale, which is accurate and easy to read, with small error 2、Aluminum Alloy: The whole body is made of aluminum alloy, the appearance is anodized, high hardness, and very 3、High Accuracy: There is marked hole design in the ruler, the hole position and the diameter of the hole are accurate to 1mm, convenient for marking and measuring the length and improving the accuracy 4、4 Hole Design: The handle adopts 4 hole design, which is more ergonomic, easier to grasp the tool, and improves the overall appearance 5、Multi Function: Aluminum alloy right angle scribing ruler can draw circles, scribe lines, draw hinge holes, measure angles and other functions in all 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: 1 x Aluminum Framing Woodworking Squares 1 x Wrench 1 x User Manual Note: Match to the right size before use Package List 1 x Aluminum Framing Woodworking Squares 1 x Wrench 1 x User Manual