Hmmm...I guess I have either bad roads, or bad luck, or both. I change a tire a couple times a year, one this week. Metal roofing type nail through the center of the tread.
I love my impact wrenches as well. My hex drive cordless impact is great for getting lug nuts 90% on, so I can finish quickly with a torque wrench. (Why do owner's manuals bury torque specifications? "Is that under wheels? Tires? General specifications? Got it, right after engine oil in the specifications..."
All the best,
Peter