Crafted from alloy, our drill bits are exceptionally durable and wear-resistant. The tough eccentric design ensures the bits are hardened and fully ground, enhancing sharpness and longevity. These high-quality materials are corrosion-resistant, making them ideal for long-term use without deformation or corrosion concerns. Our high-speed drill bits offer exceptional versatility, allowing you to machine various materials such as metal, wood, plastic, and composites with ease. The polished surface ensures a sharp and burr-free finish, facilitating smooth threading operations across different materials. With a selection of drill bit sizes ranging from small to large, you can choose the appropriate size based on the hole diameter and material type. This variety ensures that you have the right tool for the job, whether it's a delicate task or a heavy-duty project requiring precision drilling. These drill bits are engineered for effortless use, featuring cutting edges that enable quick and efficient drilling operations without compromising on accuracy. Designed for compatibility with hand drills, our set caters to a wide range of operational needs – from intricate tasks to robust projects. Description: Introducing our durable and wear-resistant drill bits, designed for precision and longevity. Crafted from high-quality materials, these hardened bits are corrosion-resistant and built to last. Whether you're working with metal, wood, plastic, or composites, our versatile high-speed drills deliver exceptional performance. With a range of sizes available, you can select the perfect bit for your project, ensuring clean and precise drilling every time. Designed for ease of use with hand drills, our set is suitable for a wide range of tasks, from delicate work to heavy-duty projects. Compatible with various tools including impact screwdrivers and electric drills, these drill bits are a must-have for any DIY enthusiast. Upgrade your toolkit with our reliable and efficient drill bits today. Item Name: Drill Bit Material: Copper alloy Features: High Hardness, Rustproof, Long Lasting, Universal Size Details: Color Grey: Length: 10cm(Approx.) Drill Depth: 5cm(Approx.) Shank: 0.63cm(Approx.) Specifications: 6.8.10.12mm Color Blue: Length: 9cm(Approx.) Shank: 0.635cm(Approx.) Specifications: 6.8.10.12mm Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 4 x Drill Bits