Dual Scale Ruler: Features both metric and imperial scales, providing flexible measurement for a wide range of woodworking projects and precise marking tasks. Builtin Scriber Function: Integrated round holes securely hold a pencil or scribing tool, enabling accurate marking and layout on various wood surfaces for cutting and drilling. Lightweight Aluminum Construction: Made from durable aluminum alloy for longlasting wear resistance, while remaining easy to handle during extended use. Adjustable Sliding Stopper: An aluminum stopper can be fixed on board edges, allowing smooth, consistent sliding and marking along the workpiece surface. 23 Practical Use Scenarios Marking cut lines and joinery: Use the dual scales to transfer precise measurements for crosscuts, notches, or mortises, ensuring accuracy on both softwood and hardwood. Layout and drilling preparation: Use the builtin scriber holes to secure a pencil or scriber for marking drill points or layout lines, improving alignment before cutting. Repetitive markings across multiple boards: Attach the sliding stopper to a board edge to establish a consistent starting point and repeatable markings across several pieces, enhancing efficiency and consistency.