I had a problem with a cordless impact gun that I just received from Amazon and was highly dissapointed. I took it to the DeWalt factory repair center in Sacramento Ca, on November 18, 2015. and John Hobbs looked at it and told me he would have it checked out. To my surprise he was able to have my cordless impact gun repaired and I was on my way in less than 90 minutes. It was under waranty. My tool was a Model DC820B18v ½″ impact wrench. S/N xxx432 Thats great service and He was quite friendly and helpful! Should I need repair for any Porter Cable or DeWalt tools I will go back and I highly recomend this service center. This was alot easier than dealing with Amazon.