Metal flexible shaft Two specifications, the length is about 300mm/200mm Two shaft sizes: The size of the hexagonal shank connected to the electric drill is about 6.35mm (1/4) The size of the hexagonal part of the connection bit is about 6.35mm (1/4) Uses: This flexible shaft can be used for ordinary chuck type hand electric drill, and can also be used for electric screwdriver screwdriver (fixture 1/4). The head of the flexible shaft can be installed with a hexagonal handle (1/4 handle), which is mainly suitable for computer cases, electrical cabinets, furniture, electrical appliances, etc., narrow spaces, dead angles, etc., where the screwdriver cannot work.