1、It is made of aluminum alloy material with carbide blade scriber, high strength and high hardness, with long durability. 2、The 1/2 gauge will automatically find the center of your workpiece by using simple geometry. 3、It allows you to quickly find the 1/2-thickness of any material, for which the thickness does not exceed 3inch.​ 4、Make perfect fitting joints without guesswork, transfer cut depths and set limitators instantly, all without calculation or measurement.​ 5、It is particularly useful in metalworking and machining applications, where precise centering is critical for achieving accurate cuts and drilling operations. 6、Practical woodworking tool, wide applications, it is commonly used in metalworking, woodworking, and other industries. Accurately, quickly and efficiently. The 1/2 Gauge will automatically find the center of your workpiece by using simple geometry. Easy to use, simply lock the measuring workpiece in place and set the cutting depth of your blades and router bits, or set limitators. Practical woodworking tool, wide applications, it is commonly used in metalworking, woodworking, and other industries. Features: It is made of aluminum alloy material with carbide blade scriber, high strength and high hardness, with long durability. The 1/2 gauge will automatically find the center of your workpiece by using simple geometry. ​It allows you to quickly find the 1/2-thickness of any material, for which the thickness does not exceed 3inch.​ ​Make perfect fitting joints without guesswork, transfer cut depths and set limitators instantly, all without calculation or measurement.​ It is particularly useful in metalworking and machining applications, where precise centering is critical for achieving accurate cuts and drilling operations. Practical woodworking tool, wide applications, it is commonly used in metalworking, woodworking, and other industries. Accurately, quickly and efficiently. Specifications: Material: Aluminum Alloy, Brass, Carbide Color: Black Measuring ranges: 3inch Package size: 74 * 68 * 34mm / 2.91 * 2.68 * 1.34in Package weight: 389g / 13.72ounce Packing List: 1 * 1/2 Gauge Workpiece Center Finder 1 * 1/2 Gauge Workpiece Center Finder