Flexible extension: Bent 300 degrees, can be rotated in different directions, easy to control. Easy to use: Its sturdy and flexible enough to reach tight spots, professional for reaching dead and narrow parts. Worked great: Can be connected to power drill electric drill, suitable for manual screwdriver, electric screwdriver, pneumatic screwdriver, make work easier. Reach places: Flexible extension drill bit holder solve the repair the car engine stricture uninstall screw, can reach the installation or removal of screws. Sturdy: High hardness, clear angle, rugged, easy to loose extension drill bit holder., Manufacturer: QWORK