General description Multifunctional Folding Triangle Ruler designed for carpentry, woodworking, and construction. This carpenter's square features a folding speed square with a 6-inch folding extension arm, accommodating both 6-inch and 12-inch layouts. Its compact design allows for easy storage and portability. Technical specifications Material: Aluminum alloy Size (expanded): 310 x 180 mm Measurement units: Metric and imperial Usage Can draw 45° and 90° angles, balance lines, vertical lines, and equidistant center points. Adjustable positioning knob for precise measurements at various angles. Ideal for DIY projects, craftsmanship, and construction tasks. Other information