Features 1. Shockproof Screwdriver Heads: These magnetic drill bits are specifically designed for high impact and high-strength screwdriver tasks. They are particularly suitable for use with screwdrivers, especially impact screwdrivers. 2. Anti slip Serrated Blade: Use this function to bid farewell to screw slipping. The screwdriver head adopts a serrated blade design, which can effectively reduce head sliding and enable you to work more efficiently. 3. Hardness 62HRC: The materials used for these screwdriver heads have been high-precision optimized to ensure their durability. The hardness level is 62HRC, and the drill head is particularly sturdy and durable. 4. Mechanical Principle Design: These screwdriver bit sets are designed based on mechanical principles, with high torque and high impact resistance. When the drill bit comes into contact with the screw head, the collision reaction force is partially absorbed by the torque, effectively preventing the tool head from breaking. 5. Shock Proof: These screwdriver head kits can withstand impacts. Even when using dovetail nails to penetrate metal plates, they can resist cracking. Specification Material: D1 Color: Purple & Black Size: 15 x 2 x 2 cm Weight: 90-310 g Package Include: 1x D1 Anti-Skid And Impact Resistant Screwdriver Head