As part of #vanconversion project I've been installing 10-24 threaded rivet nuts to create attachment points in sheet metal.
I broke and returned two of the lever style rivet tools you can buy online for $50. Both had these custom mandrels (fancy machine screws) that attach to the rivet and pull the back toward the front. Both tools lacked sufficient feedback to tell me when to stop applying force, with predictable results.
This little gizmo is about $2 in parts from the hardware store and has installed dozens of rivets.
