1、Multifunctional markers, square multifunctional woodworking, T-type writing, 45 degree angle, aluminum alloy thickening guide. 2、The bottom is magnetic, the central locator can be connected to the iron surface extension table, thick aluminum alloy, good stability. 3、The calibration is clear and easy to read, and no need to replace the main body in the measurement process. 4、Used to determine the exact position of the center of the cutting plate, pin joint and assembly isochron plate. 5、The center is made of aluminum alloy, environmentally friendly and durable in use. 6、Simple sliding rules are suitable for overlapping markers on the left and right sides of the rules. 1 x ES-4 Red Woodworking Ruler Condition: 100% brand newItem Type: Woodworking rulerMaterial: Aluminum alloyColor: RedMeasurement Accuracy: 0.1mm