What this tool does and why you need it Draw precise, repeatable circles directly on wood surfaces without slipping or lifting. The scribing/pivot pin secures the board and keeps the center point stable so your layout lines stay accurate while you cut or route. Saves time and reduces material waste by giving you a reliable guide for cutting, routing, or finishing round parts. Key features and benefits Secure fixation: clamps the wood surface and stabilizes the pivot point to prevent the circle from shifting or the center from pulling out during marking. Durable construction: made from robust aluminum alloy for long service life and consistent performance in workshop use. Large adjustable range: radius adjusts from 0 to 534 mm, allowing circles up to 1,068 mm in diameter—suitable for small detail work and large panels. Dual-scale readout: calibrated in both metric and imperial units so you can set radii quickly and accurately, regardless of your measuring system. Simple, repeatable operation: easy-to-set adjustments let you reproduce the same circle size across multiple parts. Materials and compatibility Material: aluminum alloy body for strength and corrosion resistance. Compatible with all common wood surfaces and woodworking projects that require accurate circular layouts. Typical applications (practical use scenarios) Furniture and tabletops: mark and cut perfect circles for round tabletops, recessed inserts, or decorative details. Joinery and cabinetry: lay out precise holes for sink cutouts, speaker mounts, or circular panel inserts before routing. Workshop and industrial design: use for pattern making, prototype parts, and repeatable layouts in production or custom builds. Performance and usability Provides precise, stable marking for professional and DIY woodworking. Easy to read, quick to set, and durable enough for frequent shop use. Works equally well for one-off projects and batch production where consistent circle sizes are required. Specifications (as provided) Adjustable radius: 0–534 mm Maximum diameter: up to 1,068 mm Material: aluminum alloy Scale: dual (metric and imperial) Reliable, accurate, and built for woodworking environments—this circle scribe/pivot tool simplifies large and small circular layouts while keeping your work consistent and professional.