This review is for the 1/4" impact driver only. I haven't used the 5 bits provided, I reckon they are of typically poor to average quality that probably won't hold up well, especially with repeated use, but again that's just a guess, not a fact. Quality beats alone cost more than this set, so set your expectations there. But a good quality driver for what is intended. It won't help in all situations, but if it does, you'll wonder how you ever got along without it. It's made to take a hammer hit, but don't pound the crap out of it with a two-pound hammer.