Flexible Shaft Metal Extension with Screwdriver Bit Holder Fastener 1/4 Hex Chuck for Electric DrillFeature:1. The flexible shaft can be used for universal handheld drill chuck and electric screwdriver.2. The first batch of flexible head shaft with hexagonal handle (1/4 handle) can be installed.3. It is mainly used for operations that screwdrivers in a narrow space, such as computer case, cabinet and furniture, can not work in the environment. Specifications:Material: Metal Total Length: 150mm/5.9'', 200mm/7.87'' Hexagonal Handle Size: 6.35mm (1/4 in)Note:1. Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures. Thank you!2. Please allow 1-2cm measurement deviation due to manual measurement.1 X Universal Flexible Metal Roller