Applications & Features:--- Suitable for processing non-ferrous metals, such as copper and aluminum, and also soft materials. When it cannot penetrate, try to adjust the RPM. Suitable for electric hand drill, bench drill and machine tool equipment.--- Made of high-speed steel, with high hardness, heat resistance, wear resistance, and durability. HSS(High Speed Steel) enables the drill body harder and can keep a longer drilling life and fast drilling performance.Useful Tips:--- Please keep cool and gentle use, the correct use can greatly extend the life of the twist drill.
