- Smooth rotating cap for easy screw/unscrew quickly without lifting the bits
- Ergonomic designs with non-slip and dual color TPR handle for operation comfort.
- Keyless chuck for easy adjustment of bits holder extension bar from 45-133mm
- Adjustable bit holder design for easy work inside tight or hard to reach places
- Including 32 bits in one storage box with hanger for convenient carrying and storage and meet the most of precision applications