I've pulled a lot of lug nuts off with my mg31 and mg325. These little guns have plenty of power for use in a tireshop or brakeshop, and they seem to hold up really well. The 1/2" version may even hold up better since it has a more robust anvil. All I can say is if what I'm working on isn't a 3/4 or 1 ton truck (No need to work them too hard) my little mg's are my go to guns, they're just lighter and more convenient.