File carrier which is intended to carry a file for filing bone of the medullary canal of the femur a fixed jaw and a movable jaw are arranged at the distal end of the intermediate portion and there are provided means which are intended to control the movement of the movable jaw relative to the fixed jaw between a closed state in which the file is fixed in position on the file carrier and an open state in which the file is released from the file carrier the position of the movable jaw in the open state is displaced in the mediolateral direction relative to the position of the movable jaw in the closed state.
