Summary: The quality of these impacts is poor as with most dewalt tools. I have two of these at work and both have had to be sent out for repairs. I have four dewalt angle grinders all have broke more than once. If I wanted a junky Black and Decker I would have bought one.
Summary: It wouldn't break the lug nuts free - simply not enough power. Your money would be better spent buying a mid-size air compressor and an air impact wrench. It did do a good job of reinstalling the lug nuts.