To perpendicularly lift and reverse the upper die of a die set, which are various in size and weight, with efficient safety light work.

A main shaft 105 having a male screw part is fastened to the upper die of a die set, which has a female screw part. There are provided: a belt holding part 103, which is set in a rotatable manner with respect to the main shaft 105; a support plate 104 for supporting the belt holding part 103, which is fixed to the main shaft 105; a nut 101 for screw fastening, which prevents the belt holding part 103 from coming off from the main shaft; and a lock nut 102, with which the nut 101 for screw fastening does not get loose. The upper die of a die set is lifted using a crane and a belt, and the main shaft and the upper die of a die set are turned together by a rotatable sling holding part, so that reversing work of a workpiece is safely and efficiently conducted.