General description The 10pcs 4 Flute Drill Bit Set is designed for high efficiency drilling in various materials including wood, aluminum, steel, and titanium. This set features high-speed steel construction, ensuring durability and longevity. Technical specifications Material: High-speed steel Sizes: 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 12mm Usage Suitable for side milling, end milling, and finishing Effective for machining carbon steel, alloy steel, forged steel, tool steel, cast iron, and titanium