Flexible extension rod for screwdrivers, screwdrivers and drills. Flexible, smooth and easy to control. Durable and portable, can be bent up to 300, total length: 295 mm Can be turned in different directions and suitable for 1 or 4" (6.35 mm) hex bits. Allows tightening, unscrewing and drilling in places that are normally inaccessible. Specifications Material: metal Total length: 295 mm Shape: snake Color: Red, Orange, Blue, Black Metric Hex Shank Size: 1 or 4'' (6.35mm) Hex Socket Head: 1 or 4'' (6.35mm) Flexible extension for screwdriver head extension flexible Flexible, smooth and easy to control. Durable and portable, can be bent up to 300 Flexible extension for screwdriver head extension Comment This universal flexible rod is dedicated to electric screwdrivers and can also be used on drills with torque adjustment, but cannot be used on alternative electric drills without torque adjustment. If the screw is installed and screwed in, and the screw is screwed to the end, the drill without torque adjustment will continue to rotate, and the flexible shaft will be damaged due to the high torque of the electric drill.