Just waiting on delivery.Have installed shelving, built storage for the sheet metal, bought another rivet puller from Harbor frieght ($39.95-on sale). Put a dremel bit in my drill press and ground out the tip of the rivet puller as ZAC calls for. (The easiest way I found to do this is drill and tap a scrap of Aluminum to 8mm. Put the tip into that and clamp to drill press). Very simple holder.