Features: Ideal for drilling hard work materials. Applications: ● Material of machining: mild steel, general steel, cast iron, light alloy, stainless steel. Specifications: Blade diameter: 0.7 inches (18.0 mm); Groove length: 5.5 inches (140 mm); Total length: 9.4 inches (240 mm); Shank: MT2 Specification 2: Effective processing depth: 3 - 5D (blade diameter x 3 - 5 times); Non-coating material/finish: Cobalt high-speed steel (KMC2)