General description Short 10pcs High Speed Steel Twist Drill Bits are designed for efficient drilling in various materials including stainless steel, iron plates, and wood. Made from premium high-speed steel, these drill bits ensure smooth drilling with minimal burrs and a hardened cutting edge for extended durability. The three-point positioning feature enhances accuracy, making it easy to drill round holes. Technical specifications Material: High-speed steel Quantity: 10 pieces Diameter: 4.5 mm Compatibility and accessories Compatible with electric drills, cordless drills, and pistol drills. Usage Ideal for drilling on stainless steel, cast iron, sheet metal, steel plate, and angle iron. Commonly used in drilling stainless steel plates, automobile spring steel, and die steel. Other information