Made from an aluminum alloy, this woodworking circle marking tool offers durable performance with a light, easy-to-handle design. Key specifications - Circle marking tool base radius: 36.5 mm - Main circle radius: 300 mm - Extended circle ruler radius: up to 550 mm - Fully adjustable radius to measure or draw arcs and circles of various sizes Why you need it - Precise, repeatable markings for circular and arc layouts on wood - Adjustable radii cover a wide range of project requirements - Lightweight yet sturdy construction for repeated use in workshops How it works - To use, loosen the fixing screws, secure the tool to the woodworking compass, and set the desired radius. The radius can be fine-tuned to match different marking needs, reducing setup time for each job. What makes it stand out - Wide radius range with a compact form factor - Aluminum alloy construction for durability and light weight - Clear, adjustable settings that save time on marking, layout, and assembly Practical use scenarios - Mark circular layouts on panels for furniture components such as tabletops, shelves, or curved rails - Draw arcs or circles for cabinetry doors, window frames, or decorative elements - Create consistent hole patterns or curved cutouts by setting identical radii across multiple parts This tool provides reliable, adjustable circle and arc marking capabilities that streamline marking, layout, and assembly in woodworking projects.