A. Product Name: Screwdriver Accessories B. Material: CRV Chrome Vanadium Steel C. Weight: Approximately 50 grams D. Size: 6.35 interface at the front end, 5 mm in diameter E. Specifications: 1. Each screwdriver bit in this set is made of durable CRV chrome vanadium steel, which can reduce wear and ensure a relatively long service life. This drill bit set contains special drill bits that can loosen anti - tamper drill bits that some ordinary screwdrivers may not unscrew. 2. This universal drill bit drive set contains 5 unique drill bit ends. 3. This drill bit set is carefully manufactured and precision - machined with accurate dimensions. The beveled ends of the drill bits can smoothly insert into fasteners, protecting the edges of the drill bits and fasteners from possible damage. 4. These drill bits are suitable for use in electronic devices. They can be used where additional safety is required. 5. Our safety drill bit set can be used in many projects. When additional safety measures are needed, the drill bit can be used to fix the corresponding screws to wood, metal, or other materials. One can complete the work relatively confidently and quickly! F. Packaging Contents: 5 screwdriver bits