Was checking the front brakes on my 2006 CR-V when I noticed on one of the (steel) wheels, one or two of the lug nuts came off with difficulty and another wouldn't budge at all until I really wailed on it and broke it off (ouch!). Brought it to a shop and they said at least three studs are damaged and they recommended all 5 be replaced. Last time someone may have removed the front wheels was in May by another shop (I don't know for sure, but they did do a 4-wheel alignment). Before that, I removed the wheels last year and didn't notice any problems taking the wheels off and putting them on. I always work with wheels using a breaker bar to loosen the lug nuts and torque to factory spec using a torque wrench with a calibration certificate. I've heard this happens, but this is the first time I've encountered damaged wheel studs and I've worked on quite a few wheels over the years. Am wondering how this may have happened---could the shop have done this with an impact wrench?