Super Hardness And Good Anti-rust Effect: Engineered To Resist Wear And Corrosion, These Bits Offer Long-lasting Performance Even Under Harsh Conditions. Surface Polishing Treatment: Enhances Durability And Reduces Friction, Resulting In A Smoother Drilling Experience. Flat Tip Drill: With High Frequency Heat Treatment, This Drill Bit Ensures Maximum Durability And Precision In Every Application. Optional Groove Hex Shank: Provides A Secure Grip And Easy Bit Replacement, Tailored To Suit Your Specific Drilling Requirements. Electric Drill Compatibility: Universally Compatible With Most Electric Drill Models, Offering Flexibility And Convenience. Engineered for precision and built for durability, this tool delivers exceptional drilling performance across various carpentry projects. Its super-hardness and anti-rust effect ensure reliability even in challenging environments.