- Precision for panel layout: the edge ruler provides high accuracy for panel layout work. Set the head to the desired angle and draw a straight line along the ruler. - Adjustable angle head: the head can be set from 0° to 70°. It locks every 5° and includes two reference angles at 22.5° and 67.5° for convenient setups, ensuring consistent reference angles and lengths. - Clear laser scales: the surface features laser-etched scales that are easy to read and minimize parallax error, improving readability and reducing measurement mistakes. - Simple parallel line drawing: to draw a parallel line, place the pencil in the notch and slide the pencil tip along the edge of the barrel. - Accurate graduations: both edges of the ruler blade are engraved with a 1/32 inch scale, with total cumulative error limited to 0.004 inches. - Versatile and compatible: suitable for engineering, angle measurement, student drawing, architectural design, and length measurement. Ideal for students, carpenters, architects, and designers. Applications and use scenarios: - Woodworking and carpentry: set the angle to the required bevel, lock it in, and mark precise cut lines or layout joints with parallel reference lines for cabinetry or framing projects. - Engineering drawing and architectural design: use the adjustable head to transfer angles and lay out precise panel edges and reference lines for drafts and plans. - Educational and drafting work: students can practice angle measurement, drafting practice, and accurate length/layout tasks with clear, parallax-free readings.