Features: Discover the versatility of our concrete drill bit kit, engineered for precise drilling in materials like concrete, glass, plastic, wood, and brick ensuring durability and efficiency. Crafted from alloy, these drill bits boast exceptional hardness and wear resistance, featuring a unique cutting head design that enhances stability and accuracy during use. Ideal for DIY enthusiasts, professional workers such as electricians and carpenters, and renovation companies seeking reliable tool to meet diverse drilling needs. Perfect for home renovations, outdoor construction projects, emergency repairs, and artistic creations on materials like ceramic and glass, offering flexibility and convenience various applications. Equipped with a standard hex shank for compatibility with most power tool, this kit includes multiple sizes to accommodate different drilling depths, all housed in a durable storage box for easy organization and transport. Specifications: Component:Alloy Specification: 3mm-12mm Handle diameter: 6.35mm hexagonal handle Package Includes: 1 Set Concrete Drill Bit note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.