I have a spare six-point 3/4" flank drive socket I'd like to keep in the trunk with a breaker bar. (From recent experience, the little collapsing wrench that comes with the seventh-gen Chevy Malibu doesn't provide enough torque to loosen the lug nuts, when changing a flat tire. It's possible they were over-tightened.)
The lug nuts are presumably 19 millimetre. Is this an acceptable idea, or is there a real chance I'll be abusing the lug nuts by using a socket 0.26 % (a quarter of one percent) too big?