Durable carbon-steel ruler built for accurate woodworking layout and marking Key benefits Long-lasting construction: Made from carbon steel that is smooth, rust-resistant and sturdy to prevent cracking or deformation during regular use. Accurate, repeatable measurements: The built-in scale groove and movable scale block let you set and lock a precise measurement for consistent marking. Compact and portable: Lightweight and small for easy storage and transport — a practical tool for job sites, workshops, or home projects. Saves time and reduces errors: Quick adjustment and secure locking make repetitive tasks faster and more reliable than freehand marking. Features and performance Material: Carbon steel—smooth finish resists corrosion and stands up to workshop wear. Design: Scale groove with an adjustable scale block and tightening screws for fast, user-friendly operation. Function: Provides precise marking and repeatable measurements for carpentry and woodwork without bending or warping. Who it’s for DIY enthusiasts and experienced carpenters who need a dependable marking tool for layout, joinery, and repeat cuts. Practical use scenarios Laying out repeat cuts on boards for shelving or stair treads: set the scale block once, lock it, and mark multiple pieces with identical spacing. Marking dowel, biscuit, or mortise locations: fast, accurate placement ensures tighter-fitting joints and less rework. Scribing trim and cabinetry work: precise, locked measurements help transfer dimensions and maintain consistent alignment across parts. A reliable, straightforward accessory for precise marking and measurement in a wide range of carpentry and woodworking tasks.