I ordered this set, I thought it would be useful, I was mistaken. Now I'm thinking of throwing it away. I've never used it and I'm afraid I don't use it anymore. On a reversible screwdriver, the backlash is so big, I don’t even know what to compare it with. Such a screwdriver can not even tighten the screw. Don't hesitate to buy, waste of money. HORRIBLE SET! !! It would be removed from sale, but they sell everything, despite the reviews, this means that no one reads our reviews from the admins! !!