MULTI FUNCTION: Woodworking center scribe, square center scribe, 45 degree 90 degree right angle line gauge. HIGH ACCURACY: Accurate angle measurement, easy to use and carry. HIGH QUALITY MATERIAL: Made of high quality aluminum alloy, sturdy and durable. EASY OPERATION: It can mark soft metal, wood, and it is perfect for finding accurate centers. HIGH EFFICIENCY: Easily maneuverable and has good working efficiency, which helps to increase efficiency and save time.