[route56wingnut]

Originally Posted by lots2learn

Most metal shapers have a rivet gun or air chisel. These work better than an impact driver for me.

https://www.browntool.com/Default.as...4&ProductID=96

I think the abrupt impact of a driver sometimes won't allow the screw to loosen first. This is why the air hammer works do well as it not only forces the tool into the screw but also by using the wrench with just enough pressure won't turn the fastener until it is ready. This will also slow evaluation of more heat or PB Blaster or Gibbs what're your choice.