This 21mm x 23mm Open End Spanner from Dapetz is crafted from high-strength steel and chrome vanadium steel, ensuring exceptional strength, wear resistance, and longevity. The highly polished chrome surface provides excellent corrosion and rust resistance for a long-lasting tool. It features metric sizes stamped on both sides of the handle for easy identification, catering to various project needs. The mirror polish chrome finish makes it simple to clean off oil or dirt, maintaining a professional appearance. Its ergonomic oval beam design offers improved comfort during use. This spanner is rigorously tested for hardness, torque, and surface finish according to industry standards and is designed for a lifetime of regular usage. It's an ideal all-purpose spanner for automotive, industrial, domestic, and hobby markets, fitting typical small hex screws and nuts. The compact size is particularly useful for confined, difficult-to-reach areas.