Round Center Finder Compas Ruler 300mm/11.8in Clear Acrylic Circle Gauge for Wood Turners Lathe Work

Made of transparent acrylic, perfect clarity of light transmission|You can make your measurement work more convenient and accurate.| ing calibration, precise measurement, clear reading, not easy to stain.|Quickly find the largest circle and center of wood to save wood.|Can be used for wood, poster board, plastic, metal, glass, composite materials and other materials.