Dave in MD wrote:

I need to peen over some 1/16" aluminum rivets, and was just wondering if
there is an ideal tool for this to get the shank to "mushroom" nicely?

Thanks for any advice,
Dave


You need a rivet set, Here is a neat page I found on riveting
http://www.technologystudent.com/joints/rivet1.htm
For aluminum rivets it will not be very hard to make up your own rivet
set, A small ballnose endmill or a round grinding stone will make the
dimple in the rivet set. If you want the head rounded on both sides you
will need a bucking bar with the same dimple as the manufactured head.