Chuck wrench

The utility model discloses a chuck wrench, including last casing, down the casing, receive mechanical axis and handle, upper and lower casing passes through the bolt rigid coupling and forms a right -hand member open -ended cavity structures, the epaxial end of atress passes down in the casing stretches into the cavity from bottom to top, the ratchet has been put to the interior epaxial cover of atress of cavity, ratchet and receive to be equipped with the key between the mechanical axis, the handle left end pass in the opening stretches into the cavity, the pawl with the ratchet meshing is put to handle left end cover, first spring has been put to the cover on the handle on pawl right side, the lower extreme that receives the mechanical axis is equipped with the recess, and recessed?wall is equipped with magnet, is equipped with the key bit in the recess. Adopt the ratchet structure to realize corotation and direction changing conversion. Increase protecting sleeve structure, make the safer production and p