1. Durable and Corrosion-Resistant: Made from precision-machined aluminum alloy, this angle marker scriber offers exceptional resistance to distortion, durability, and corrosion. It is built to withstand the demands of woodworking projects, ensuring long-lasting performance. 2. Perfect for Drawing Circles and Diagonals: 10-90 arbitrary underlining,this pen center finder scriber is perfect for accurately drawing circular centerlines and diagonal lines on woodworking projects. Achieve precise and symmetrical markings with ease. 3. Effortlessly Draw Centerlines on Cylindrical Objects: With its 45 degree angle design, This center scriber allows you to effortlessly draw centerlines on cylindrical objects. Whether it's a wooden dowel or a round tabletop, achieve accurate markings using the convenient and versatile functionality of this tool. 4. Compact and Convenient: The compact size of this round center line marker makes it easy to handle and maneuver. It fits comfortably in your hand, providing precise control during marking tasks. Additionally, its portable nature allows for easy transport and storage. Please note:the physical slightly color difference or difference,please do not mind, thank you! :Woodworking Model Number:Circle Marker Colour:Black Material:Aluminum alloy Package Contents: 1 * Woodworking Ruler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.