Product Details: The professional woodworking ruler is a simple and commonly used marking tool in industry and commerce. It is an accurate aid for work preparation. In order to provide people in need with a more delicate, durable, accurate and long-lasting scale, we have specially designed this multi-functional, high-quality, high-precision, high-quality pocket ruler to ensure that you can quickly and easily obtain accurate work results. Allows you to quickly and easily transfer the size and precise parallel marks and lines to the workpiece, thereby simplifying your work flow, allowing you to complete the learning and work content more efficiently. Features: 1. High-quality aluminum alloy material, higher hardness, thick and not bulky, sturdy and durable, can accompany you for a longer time. 2. Baking paint process, showing a black smooth matte finish, which is convenient and easy to use but also exquisite. 3. The laser engraving degree makes the data more accurate and the marks easier to read. 4. Both sides of the ruler have depth laser measurement scale in inches and centimeters, and the side provides depth measurement, which has more comprehensive functions. Specification: Material: aluminum alloy Weight: 140g Size: 8 inches Colour: Black Measurement scale: Metric british system Packing list: 1*8 inch metric imperial ruler This ruler scriber gauge for measuring and marking is an ideal choice for offices and schools. It is a portable professional drawing and measuring tool for students. 【High-Quality and Durable】: The high-precision measuring ruler is made of high-quality aluminum alloy, which is higher in hardness, thick and not bulky. The measuring ruler is electroplated and painted with a smooth matte black finish, which is more wear-resistant, not easy to rust, and is not easy to bending damage, support you to use 10,000 times without abrasion, specially designed for your long-term use, can accompany you for a longer time. 【High-Precision Measurement】: The slide ruler for mathematics adopts laser engraving, the scale is more accurate, the mark is more clear and easy to read, and will not be wiped off over time, the flexible stainless steel ruler can accurately mark the finest millimeters, to provide you with accurate measurements. 【Multi-Function Measurement】: The metric ruler with markings provides metric and foot scales, with millimeter and inch planes, and the side provides depth measurement scales. It can be used for length and width measurement, as well as depth or height measurement. It is accurate, portable, and convenient carry it to meet your various measurement needs. 【Built-In Sliding Stop】: The card of the machinist engineer ruler adopts a detachable design. The slider of the card can be moved to the desired position at will, tighten the screw and mark the length and position, turning it into your precision marking tool. Allows you to easily use to mark and draw lines, making your operations more accurate. 【Versatility】: The clear ruler is a practical tool for schools, offices, home schools, architects and engineers. The slide ruler for engineers and architect is a versatile and perfect metal ruler suitable for architects, draftsmen, engineers and artists. You can accurately and conveniently measure data anytime, anywhere.