10pcs /Set Hexagonal Shank Quick-release Adapter Electric Drill Adapter Quick-release Self-locking Large-head Socket Adapter

1. 6.35mm shank diameter, wide range of applications, compatible with various drill bits/screwdriver bits
2. Built-in strong magnet, automatic locking design, easy to change bits
3. Built-in stable lock and high-efficiency spring, high concentricity
4. Material: chrome vanadium alloy steel
5. Applications: for quick adapters to electric drills, screwdrivers, pneumatic screwdrivers, etc.
6. Size: about 6 x 2.4cm, shank diameter about 6.35mm