The impact driver is a corded electrical driver. It was my grandfather's and it quiet old but has come in very handy over the years. He was a mechanic in the Army during WW2. It's pretty neat to be building stuff with his tools!
Yeah, I'll try and a few good whacks along with some penetrating lube. In the past with stuck bolts I've used heat and penetrating lube over the course of days or weeks to finally free them. It's one of my least favorite things to do...l
