I found a set of clutch head bits for my hand impact screwdriver and it's never failed me yet. Just get a bigger hammer. I also have the 3/8" drive ones GeneBrink posted, they work great. I take a pick and clean them out real good first. It is worth the time to me to not mess it up when trying because once it slips once it gets considerably harder.

Old enough to know better, too young to resist.