Features 1、Made of high-speed steel, anti-corrosion and durable to use. 2、10 different specifications of twist drill bits, almost meet all your needs. 3、Long cutting edge allows you using these bits to drill deep holes. 4、Incisive twisted drill bits will make the drilling easier and more effortless. 5、Suitable for most drilling jobs and materials such as thin metal, aluminum, iron, carbon steel, wood, plastics, etc. Specification Features: Made of high-speed steel, anti-corrosion and durable to use. 10 different specifications of twist drill bits, almost meet all your needs. Long cutting edge allows you using these bits to drill deep holes. Incisive twisted drill bits will make the drilling easier and more effortless. Suitable for most drilling jobs and materials such as thin metal, aluminum, iron, carbon steel, wood, plastics, etc. Specification: Material: High speed steel Weight: 7g/0.2oz Color: Silver Specification: 0.5mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.5mm,3mm Package list: 10 * Twist Drill Bits (0.5mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.5mm,3mm) Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List