1. The steel rulers are crafted from durable carbon steel, this ruler ensures rigid straightness and is treated with a rust-proof surface finish, providing exceptional corrosion resistance and long-term reliability.2. The metric straight edge measuring tools are precision-printed with double-sided metric/inch scales, its high-contrast markings ensure quick, accurate measurements for both beginners and experts.3. Machinist metal rulers are suitable for woodworking, DIY projects, engineering blueprints, art drafting, and office tasks, serving carpenters, designers and professionals alike.4. Please handle with care to avoid cuts, and store out of children's reach.
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