General description The Metal Alloy Angle Measuring Hole Positioning Ruler is a high-quality, multifunctional tool designed for precise angular measurements. Made from ultra-strong aluminum alloy, it features robust metal buttons that enhance durability compared to plastic alternatives. The ruler has round and smooth edges to prevent injuries, making it suitable for construction workers, craftsmen, and DIY enthusiasts. Technical specifications Material: High-quality aluminum alloy Measurement scale: 12 cm / 4 inches Buttons: Metal Laser engravings: Fade-resistant Usage Ideal for measuring surfaces of bricks, paper, stone, tiles, wood, and other materials Facilitates easy and accurate transfer of angles or holes by hand Increases efficiency by eliminating the need for multiple layers and cutting instruments Allows for tracing tedious and repetitive patterns with one hand Other information Easy to fold and store, saving space Portable for use at any construction site