Of course, I use pop rivet dimplers almost exclusively so what do I know?
Mel, I need to introduce you to the wonders of Compressed Air...
In what situation would I use one of these instead of a spring cleco? I'm guessing you can get them a bit tighter than a spring cleco, but I've had even spring clecos pull through under too much load. Do the wing nut versions have any more grip length?