General description You receive 30 pieces of cobalt drill bits, double-ended, with a drilling diameter of 1/8 inch, providing enough quantity to meet your daily use needs. The drill bits are designed for reliable performance, featuring a double-ended twist design that allows for drilling two holes at each end, improving drilling efficiency. Technical specifications Quantity: 30 pieces Drilling diameter: 1/8 inch Length: approximately 1.89 inches / 4.8 cm Material: M35 cobalt steel Design: 135-degree split point and twist design Compatibility and accessories Compatible with lithium drills, electric drills, hand drills, and impact drills (excluding specific models) Usage Suitable for drilling in hard metals such as stainless steel, cast iron, titanium alloys, and hard plastics Also effective for drilling in wood and some soft materials Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product