Thanks to all for your quick replies. I suppose in my ignorance I thought there would be some nice old books covering, what seems a bit of lost knowledge. I'll take the advice and search for general stamping press tool and die making. I do have a nice set of books on sheet metal work, by F Horner and J.A. Oates which covers a fair bit of stamping work in volume 2. Most of the web resources seem to be focused on using them as a anvil. You are right Alan, they are hard to justify the space, but I think they are a fascinating tool with so many potential uses. Some of the things I was trying to find out are as follows: My Norton 3S has a thread inside the ram where the tool clamps in, which looks about 1" BSW. I had thought that these were normally either a 9/16" or 1" plain socket? It also has the slot at the rear of the throat, which I believe is for a bar to be inserted that then allows tubular work. Would love to see what these actually look like, so I could make one up? Pete
Edited By Peter Mills 3 on 03/01/2019 13:48:56