Just whipped up some plates trying to dial in my rivets. I was always a little ticked when I made a dent in the receiver or the rivet was a little funky so I started thinking (and applying engineering fluid.) So, I wanted a way to support the rivet head while clamping the receiver good enough to keep it tight while at the same time allowing for the other rivets, set or not, to remain in place and have the tool universal so it would fit the minor differences in location. I crapped these out (Iím sure Iím not the first one, I might have even seen someone elseís and forgot!) and they worked like a champ. Easy to handle while racking it up in the vise, fit great on a few different patterns and churned out perfect rivet heads with no wild deformation of the receiver. All in all, Iím pretty happy. Just a few smashes with the 24" bolt cutter/riveting tool and it's all gravy.