- Versatile multifunction tool: This circular drawing ruler, made from premium aluminum alloy, converts easily into a straightedge, providing a compact, multi-use instrument for all your woodworking projects. It delivers reliable performance whether you need precise circles or straight lines. - Wide measurement range: Draw circles with a radius from 12 mm to 290 mm and mark straight lines up to 290 mm. Suitable for small detail work as well as larger layout tasks. - Durable aluminum construction: Built from a high-quality aluminum alloy to withstand rigorous woodworking tasks, offering steady durability for professional use or DIY projects. - Dual measurement systems: Features both metric and imperial scales with distinct graduations, enabling seamless unit changes to fit global project requirements. - Practical use scenarios: - Create circular templates for holes, arcs for hinges, or decorative circle patterns on furniture components. - Layout straight cut lines or edge guides across panels up to 290 mm for accurate rip or cross-cut positioning. - Transfer measurements between metric and imperial systems for international projects without re-measuring.