Precision adjustable woodworking ruler — clear, durable, and easy to use Key benefits Dual measurement systems: both metric (mm) and imperial (in) on the same ruler for faster, error-free layout and transfer between systems. Choose the right size: available as a three-piece set (6in/160mm, 8in/210mm, 12in/300mm) or as a single 12in/300mm ruler to match the job. Rapid, repeatable marking: built-in slide stop and pencil groove let you set an exact offset once and mark multiple parts quickly. Long-term legibility: high-contrast white scale on red or black background, printed with a fade-resistant process so graduations stay easy to read. Features and specifications Measurement systems: metric (mm) and imperial (in) on the same scale. Sizes: 6in / 160mm, 8in / 210mm, 12in / 300mm. Sold as a set of three ranges or as a single 12in / 300mm unit. Color options: red or black base with white scale for high visibility. Slide stop: thin groove at the end accepts a pencil for precise scribing; stop is secured by two thumb screws for a firm, adjustable clamp. Construction: precision-machined aluminum alloy—corrosion resistant, rust proof, high hardness and durable for workshop use. Print quality: graduated lines and numbers applied by a special process to resist fading and wear. How it solves common problems Eliminates conversion errors between metric and imperial by providing both systems on one tool. Speeds repetitive marking tasks by locking a stop and using the pencil groove as a stable guide. Reduces read mistakes in low-light or cluttered workspaces thanks to high-contrast, fade-resistant scales. Withstands workshop conditions—aluminum alloy construction resists corrosion and physical wear for long-term accuracy. Practical applications Cabinetmaking and furniture layout: set the stop for repeated notch or screw locations and scribe consistently across multiple components. Joinery and dovetail layout: use the pencil groove and locked stop to mark precise offsets and transfer measurements from templates. On-site carpentry and metalwork: portable sizes (6, 8, 12 inches) let you choose the right ruler for measuring, marking, and setting fixtures in the field. What you get Option A: three rulers covering 6in/160mm, 8in/210mm, and 12in/300mm. Option B: single 12in / 300mm ruler. Each ruler includes a slide stop secured by two thumb screws and a pencil groove for scribing. Care and compatibility Wipe clean with a damp cloth; avoid abrasive cleaners to preserve the printed scale. Compatible with standard pencils and scribing tools; suitable for woodworking, metalworking, model making, and general workshop layout. Precision, visibility, and repeatability in a durable aluminum tool — choose the size that fits your work and keep measurements accurate across metric and imperial systems.