I've gotten sick of cheaper bits snapping and rounding off so was looking at Wera sets and bits but there seem to be plenty of reviewers having them not last long in impact drivers either. I wanted to get Wera as someone gave me a couple of bits a while back and they were pretty bulletproof.. the screws always seemed to take damage before they would but now these mixed reviews. Are there a lot of fake / imitation sets mixed in there? I've been looking on amazon/ebay.