Cobalt high-speed steel ground bars with a 10% Co content, featuring a square section and precision finish obtained through grinding treatment. This process ensures tight dimensional tolerances and smooth surfaces, making the bars suitable for operations requiring high accuracy. The HSS-Co 10% composition provides good heat and wear resistance, suitable for medium hardness metallic materials. The square shape ensures stable clamping and allows versatile use in various cutting and turning applications. These bars are recommended for the manufacture of customised cutting tools and mechanical machining requiring reliability and dimensional precision.