Watching the pic I tried to image how to use it and I understand that it was for a little cylindrical object. The first thing I thought that people use in Italy in the ancient time that had a similar form were the cartridges and so I remember a similar tool I watched in the village where I was born ;) Thans so much, dear Old Dog, it was funny to partecipate and to remind the old tools I saw in my childhood! ^_^