Removing Undercoating with Air Hammer Chisel

I previously uploaded a video of my experiments with a needle scaler and a stringer bead wire wheel for undercoating removal on my 1966 Saab Monte Carlo 850. See here: http://youtu.be/OhxcbWluxSk
I said there that I wasn't happy with the air chisel method. Turns out it was my own incompetence that was the problem. Air chisel works super on flat surfaces if you lower the air pressure and round off the corners of the chisel.

Видео Removing Undercoating with Air Hammer Chisel канала Ted Yurkon