Features Durable Aluminum Alloy: Crafted from rustproof, corrosion-resistant aluminum alloy with CNC processing, providing a lightweight and practical woodworking ruler for long-lasting use. Precision Notch Design: Features a fine notch and stop block for accurate marking, ensuring precise measurements and enhancing woodworking efficiency. Dual Metric and Imperial Scales: Clear and accurate metric and imperial scales on all four edges, in increments of 1/16 or 1 millimeter, enabling versatile and precise measurements. Versatile Vertical Measuring: Offers 1/4, 1/2, and 3/4 depth measurement units for vertical measurements, enhancing accuracy and efficiency in woodworking projects. Secure Sliding and Locking Mechanism: Adjustable sliding mechanism with two thumb screws for secure locking, providing ease and stability for making precise measurements on various surfaces. Precision Measuring with Yunyi Woodworking Ruler Unlock accurate measurements with our aluminum alloy woodworking ruler. Featuring clear metric and imperial scales on all four edges, this ruler allows precise measurements down to 1/16 of an inch or 1 millimeter. Its notch design and stop block ensure secure marking, while the sliding and locking mechanism guarantees stability for simple measurements. Step up your woodworking game with Yunyi! Package List 1 x Woodworking Ruler