Premium material and construction - Aluminum alloy, wear resistant, rust proof, durable and not easy to break. Anodized surface ensures long lasting finish. Clearly engraved metric scales are precise and easy to read. Tip: use with a pencil for marking. Precise marking capability - Precise marking T-ruler helps you draw perfectly horizontal lines as you slide the ruler along the edge of your work. It accurately marks holes and slots and leaves precise marks on the target, making it a dependable woodworking layout tool. Quality and usability - All around precise, versatile and easy to use. High hardness and durability for repeated use in busy workshops. Use scenarios - Woodworking layout: mark parallel lines along boards for drilling, routing, or cutting with consistent spacing. - Furniture and carpentry: align and mark dowel holes, mortises, and hardware slots for accurate assembly. - General layout tasks: scribe straight lines and align workpieces on panels, plastics, or light metal projects where precision matters.