1. The soft connection rod is mainly used for narrow gaps, dead ends and other places where the screwdriver is difficult to work with, such as computer chassis, electrical cabinets, furniture, electrical appliances, etc. 2. The flexible shield protects your hands while the inner shaft rotates freely. 3. The rod is of great flexibility to bend, twist and straighten even in narrow confined space. 4. Hardened for maximum wear resistance and ergonomic handle for maximum comfort. This flexible shaft can be used for hand drill chuck, it can also be used for electric screwdriver. 5. Superb After-sales Service: If you have any questions or problems about the item, please contact us online, we will reply the message to you within 12 hours from Monday to Saturday except Sunday. Product Description Product Overview Package Includes: 4 x Flexible Shaft Bits Extension Screwdriver Bit Holder Connecting Link Specification: Element type; shaft connection link Material: plastic + metal Length: 29.2cm / 11.5'' Drill site size to connecting hex shank 6.35mm (1/4) Hex size 6.35mm (1/4) bundle connecting parts Applicable scene < p>Picture Show1 Warm reminder: This product is a soft rod of an electric screwdriver, it can also be used on a load drill with torque adjustment, but it is not recommended to use it on an AC electric drill without torque adjustment.