1. Accurate Manufacturing: The woodworking cross correction ruler allows you to accurately mark parallel lines every 1 mm (from 5 mm to 49 mm scale) using perforations. Precision-engineered with a clear and accurate scale for consistent measurements. 2. Accurate Work: The woodworking L-cross ruler enables quick and precise marking of cross lines, featuring multiple round holes of varying sizes and spacing to meet a wide range of layout needs. 3. Easy to Use: This woodworking scribing ruler allows for wrap-around marking. Simply select the desired distance hole, insert the pen tip, and move the ruler to draw straight, accurate lines. 4. Rustproof and Durable: Constructed from high-quality aluminum alloy, this L-shaped measuring tool resists rust and ensures long-lasting durability. 5. Layout Tool: This scribing and measuring tool is ideal for marking and measuring along the edges of boards or other workpieces, allowing precise placement of the pencil point for accurate layout work.