Features: 1. Can be connected to electric drill or manual wrench to easily solve the problem that ordinary screwdrivers cannot work in narrow areas. 2. Its sturdy and flexible enough to reach tight spots, professional for reaching dead and narrow parts. 3. Flexible extension drill bit holder solve the repair the car engine stricture uninstall screw, can reach the installation or removal of screws. 4. Flexible out shield protects your hand while inside shaft rotates. Great for attaching to your power screwdriver. Attaches easily. 5. It is an important tool for the environment where the computer case, furniture, assembly table, electrical equipment and other space are small, and the screwdriver. Notice: *Actual color may be slightly different from the image due to different monitor and light effect *Please allow 1-3cm deviation due to manual measurement Description: Shank diameter: 6.35mm Length: 200mm/ 300mm includes: 1 pcs x Flexible Extension Drill Bit Holder