Well, in general, I certainly would not scold this percussion drill. Now I'm smart and I understand that it's not worth it to follow Bosch's ads, where they drill concrete. An impact drill should not be used to drill concrete. But, you see, I gave a lot of money for this "professional" tool. And what happens. I once tried to work with the boys in a construction site with the most ordinary interskol, but I didn’t remember the model. So you know what? Well, no difference. And why the hell did I give twice as much money? So she also has a cartridge that holds a drill better than a Bosch one. here and think.