Multifunctional Center Finder Gauge – This centering square gauge is used to mark centers on round discs and shafts. Woodworking center point, square center point, 45 degree to 90 degree right angle line gauge. It can mark soft metal, wood, and is perfect for finding precise centers. Quick Measure – With this Center Scribe Square Line Gauge, you can mark the center of round rods or draw a 45/90° line in a flash. The centering square is stable, accurate, and does what it's supposed to do. The center point is exactly right. High Quality – This centering angle ruler protractor is made of high quality aluminum alloy with long service life, has engraving line for easy measurement and all measuring surfaces of center mark are ground. Accurate Centering - Simple and quick operation. It can mark soft metal, wood and is perfect for finding accurate centering. This industrial precision center angle gauge can be used to measure shelves and external corners to facilitate leveling during installation. Time Saving – Practical measuring tool centering gauge for woodworkers, provides convenience and time saving. It is an easy-to-handle center marking gauge and has good working efficiency, which helps to increase efficiency and save time.