Feature: 1. Versatile Woodworking Tool: The woodworking drill positioning ruler is not only used for marking lines, but also for measuring and drilling positioning, making it convenient and practical. 2. Premium Aluminum Alloy Construction: Crafted from high-quality aluminum alloy, the drill positioning ruler is anodized surface, ensuring durability, wear resistance, and rust preventing. 3. Multiple Drill Hole Sizes: This woodworking drill positioning ruler comes with three sizes of drill bushings - 6mm/8mm/10mm - to meet your diverse drilling needs. 4. Adjustable and Accurate: The positioning ruler is designed with a sliding adjustment feature and features both metric and imperial scales. The scales are precises, clear, and resistant to wear, ensuring accurate measurements every time. 5. Wide Application: Suitable for assembling wooden boxes, cabinets, photo frames, drawers, furniture, and more, the woodworking drill positioning ruler is widely used in various woodworking projects. Specification: Color: Red Material: Aluminum Alloy Length: 300mm/500mm(optional) Package Size: 300mm: 400 * 110 * 20mm/ 15.7 * 4.3 * 0.8in 500mm: 550 * 110 * 20mm/ 21.7 * 4.3 * 0.8in Package Weight: 300mm: 340g/ 12.0oz 500mm: 480g/ 16.9oz Package List: 1 * Drilling Positioning Ruler3 * Drilling Bushings