Abstract: A device used for attaching a joint having a sleeve to one end of a hose body having a predetermined length before the joint is secured thereto by caulking, for example, during the manufacture of a brake hose. The device includes a chuck body which is rotatable about its own axis, and reciprocable along the longitudinal axis of the hose body. The chuck body has a stationary portion and a movable portion which are divided from each other by a plane passing through the longitudinal axis of the chuck body. The movable portion is reciprocally movable in a direction perpendicular to the plane mentioned above. The joint is chucked in axial alignment with the hose body when the movable portion is moved into contact with the stationary portion. The device is small, and enables a reduction in the time and labor required for the job in question.