Features • Clear Calibration Markings: Enjoy easy visibility with well-defined calibrations, ensuring precise measurements without the need to replace the main body during use • Versatile T-Type Design: Utilize the multifunctional 45-degree angle for accurate woodworking tasks, making this tool ideal for both professionals and DIY enthusiasts • Magnetic Stability: Benefit from the magnetic bottom that securely attaches to iron extension tables, providing enhanced stability and support during your projects • Accurate Center Positioning: Easily locate the exact center of cutting plates and pin joints, streamlining your assembly process for improved efficiency and accuracy • Eco-Friendly Aluminum Construction: Rely on the robust aluminum alloy design that is not only durable but also environmentally friendly, making it a reliable addition to your hand-operated tools collection Features: 1、The calibration is clear and easy to read, no need to replace the main body in the measurement proc. 2、T-type writing, 45 degree angle, square multifunctional woodworking, multifunctional markers, aluminum alloy thickening guide. 3、With magnetic bottom, the central locator can be connected to the iron extension table, thick aluminum alloy, good stability. 4、Can be used to determine the exact position of the center of the cutting plate, pin joint and assembly isochron plate. 5、Simple sliding rules are applicable to overlapping markers on the left and right sides of the rules. 6、The center is made of aluminum alloy, environmentally friendly and in use. Specification: Condition: 100% Item Type: Woodworking ruler Material: Aluminum alloy Color: Black Measurement Accuracy: 0.1mm Package List: 1 x ES-4 Black Woodworking Ruler Package List 1 x ES-4 Black Woodworking Ruler