Woodworking Compass Scriber — precision marking tool for circles, arcs and angles Key benefits Accurate, repeatable marks: Move the ruler to the exact position and lock it securely with brass screws to hold measurements while you mark. Faster setup and stable marking: Thumb screws allow quick attachment and firm fixing so the tool stays put while you scribe lines. Long‑lasting, low maintenance: Durable aluminum alloy frame with a rust‑proof main body for reliable use and a clean appearance over time. Portable and jobsite ready: Compact design with lightweight positioning blocks makes it easy to carry, store in a toolbox, or use outdoors. What it does and why you need it Precise circle, arc and angle layout: Designed for woodworking tasks that require consistent radii and accurate transfer of dimensions. Use it to create smooth, repeatable scribed lines without relying on makeshift templates. Saves time and reduces rework: Secure locking and simple adjustments eliminate slipping and drifting while you mark, helping you cut or rout more accurately on the first pass. Built for real working conditions: The combination of brass locking screws, thumb screws, and an aluminum alloy body resists wear and corrosion, keeping the tool dependable over multiple projects and jobsite environments. Key attributes Function: Marks perfect circles, arcs and angles; transfers measurements; holds set positions for repetitive marking. Materials: Aluminum alloy body for strength and light weight; brass screws for secure, corrosion‑resistant locking; rust‑proof main body finish. Size/portability: Compact, lightweight design and small positioning blocks for easy transport and storage. Performance: Quick adjustment, positive locking, and stable scribing action for consistent results. Practical use scenarios Cabinet and furniture making: Scribe accurate arc lines and circle cutouts for decorative elements, door openings, or router templates. On‑site carpentry and repairs: Take the tool to a jobsite for layout work, trim fitting, or when you need to scribe matching radii outdoors. Workshop repeat tasks: Set a radius once, lock it with the brass screws, and make consistent marks across multiple parts without recalibrating. What to expect in everyday use Easy one‑hand adjustment and locking with the brass screws and thumb screws. Clear, stable reference from the ruler position for repeatable marks. A compact, corrosion‑resistant tool that fits in a tool bag or apron pocket and performs reliably in workshop or field conditions.